CINXE.COM
arXiv blog – News from arXiv.org
<!DOCTYPE html> <html lang="en-CA"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no"> <link rel="profile" href="http://gmpg.org/xfn/11"> <title>arXiv blog – News from arXiv.org</title> <meta name='robots' content='max-image-preview:large' /> <link rel="alternate" type="application/rss+xml" title="arXiv blog » Feed" href="https://blog.arxiv.org/feed/" /> <link rel="alternate" type="application/rss+xml" title="arXiv blog » Comments Feed" href="https://blog.arxiv.org/comments/feed/" /> <script type="text/javascript"> /* <![CDATA[ */ window._wpemojiSettings = {"baseUrl":"https:\/\/s.w.org\/images\/core\/emoji\/15.0.3\/72x72\/","ext":".png","svgUrl":"https:\/\/s.w.org\/images\/core\/emoji\/15.0.3\/svg\/","svgExt":".svg","source":{"concatemoji":"https:\/\/blogs.cornell.edu\/arxiv\/wp-includes\/js\/wp-emoji-release.min.js?ver=6.5.5"}}; /*! This file is auto-generated */ !function(i,n){var o,s,e;function c(e){try{var t={supportTests:e,timestamp:(new Date).valueOf()};sessionStorage.setItem(o,JSON.stringify(t))}catch(e){}}function p(e,t,n){e.clearRect(0,0,e.canvas.width,e.canvas.height),e.fillText(t,0,0);var t=new Uint32Array(e.getImageData(0,0,e.canvas.width,e.canvas.height).data),r=(e.clearRect(0,0,e.canvas.width,e.canvas.height),e.fillText(n,0,0),new Uint32Array(e.getImageData(0,0,e.canvas.width,e.canvas.height).data));return t.every(function(e,t){return e===r[t]})}function u(e,t,n){switch(t){case"flag":return n(e,"\ud83c\udff3\ufe0f\u200d\u26a7\ufe0f","\ud83c\udff3\ufe0f\u200b\u26a7\ufe0f")?!1:!n(e,"\ud83c\uddfa\ud83c\uddf3","\ud83c\uddfa\u200b\ud83c\uddf3")&&!n(e,"\ud83c\udff4\udb40\udc67\udb40\udc62\udb40\udc65\udb40\udc6e\udb40\udc67\udb40\udc7f","\ud83c\udff4\u200b\udb40\udc67\u200b\udb40\udc62\u200b\udb40\udc65\u200b\udb40\udc6e\u200b\udb40\udc67\u200b\udb40\udc7f");case"emoji":return!n(e,"\ud83d\udc26\u200d\u2b1b","\ud83d\udc26\u200b\u2b1b")}return!1}function f(e,t,n){var r="undefined"!=typeof WorkerGlobalScope&&self instanceof WorkerGlobalScope?new OffscreenCanvas(300,150):i.createElement("canvas"),a=r.getContext("2d",{willReadFrequently:!0}),o=(a.textBaseline="top",a.font="600 32px Arial",{});return e.forEach(function(e){o[e]=t(a,e,n)}),o}function t(e){var t=i.createElement("script");t.src=e,t.defer=!0,i.head.appendChild(t)}"undefined"!=typeof Promise&&(o="wpEmojiSettingsSupports",s=["flag","emoji"],n.supports={everything:!0,everythingExceptFlag:!0},e=new Promise(function(e){i.addEventListener("DOMContentLoaded",e,{once:!0})}),new Promise(function(t){var n=function(){try{var e=JSON.parse(sessionStorage.getItem(o));if("object"==typeof e&&"number"==typeof e.timestamp&&(new Date).valueOf()<e.timestamp+604800&&"object"==typeof e.supportTests)return e.supportTests}catch(e){}return null}();if(!n){if("undefined"!=typeof Worker&&"undefined"!=typeof OffscreenCanvas&&"undefined"!=typeof URL&&URL.createObjectURL&&"undefined"!=typeof Blob)try{var e="postMessage("+f.toString()+"("+[JSON.stringify(s),u.toString(),p.toString()].join(",")+"));",r=new Blob([e],{type:"text/javascript"}),a=new Worker(URL.createObjectURL(r),{name:"wpTestEmojiSupports"});return void(a.onmessage=function(e){c(n=e.data),a.terminate(),t(n)})}catch(e){}c(n=f(s,u,p))}t(n)}).then(function(e){for(var t in e)n.supports[t]=e[t],n.supports.everything=n.supports.everything&&n.supports[t],"flag"!==t&&(n.supports.everythingExceptFlag=n.supports.everythingExceptFlag&&n.supports[t]);n.supports.everythingExceptFlag=n.supports.everythingExceptFlag&&!n.supports.flag,n.DOMReady=!1,n.readyCallback=function(){n.DOMReady=!0}}).then(function(){return e}).then(function(){var e;n.supports.everything||(n.readyCallback(),(e=n.source||{}).concatemoji?t(e.concatemoji):e.wpemoji&&e.twemoji&&(t(e.twemoji),t(e.wpemoji)))}))}((window,document),window._wpemojiSettings); /* ]]> */ </script> <link rel='stylesheet' id='dashicons-css' href='https://blog.arxiv.org/wp-includes/css/dashicons.min.css?ver=6.5.5' type='text/css' media='all' /> <link rel='stylesheet' id='admin-bar-css' href='https://blog.arxiv.org/wp-includes/css/admin-bar.min.css?ver=6.5.5' type='text/css' media='all' /> <style id='admin-bar-inline-css' type='text/css'> @media screen { html { margin-top: 32px !important; } } @media screen and ( max-width: 782px ) { html { margin-top: 46px !important; } } @media print { #wpadminbar { display:none; } } </style> <style id='wp-emoji-styles-inline-css' type='text/css'> img.wp-smiley, img.emoji { display: inline !important; border: none !important; box-shadow: none !important; height: 1em !important; width: 1em !important; margin: 0 0.07em !important; vertical-align: -0.1em !important; background: none !important; padding: 0 !important; } </style> <link rel='stylesheet' id='wp-block-library-css' href='https://blog.arxiv.org/wp-includes/css/dist/block-library/style.min.css?ver=6.5.5' type='text/css' media='all' /> <style id='safe-svg-svg-icon-style-inline-css' type='text/css'> .safe-svg-cover{text-align:center}.safe-svg-cover .safe-svg-inside{display:inline-block;max-width:100%}.safe-svg-cover svg{height:100%;max-height:100%;max-width:100%;width:100%} </style> <style id='classic-theme-styles-inline-css' type='text/css'> /*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} </style> <style id='global-styles-inline-css' type='text/css'> body{--wp--preset--color--black: #000;--wp--preset--color--cyan-bluish-gray: #abb8c3;--wp--preset--color--white: white;--wp--preset--color--pale-pink: #f78da7;--wp--preset--color--vivid-red: #cf2e2e;--wp--preset--color--luminous-vivid-orange: #ff6900;--wp--preset--color--luminous-vivid-amber: #fcb900;--wp--preset--color--light-green-cyan: #7bdcb5;--wp--preset--color--vivid-green-cyan: #00d084;--wp--preset--color--pale-cyan-blue: #8ed1fc;--wp--preset--color--vivid-cyan-blue: #0693e3;--wp--preset--color--vivid-purple: #9b51e0;--wp--preset--color--color-bg-alt: #f9f7f7;--wp--preset--color--color-boxes: #f9f7f7;--wp--preset--color--color-bg: #ffffff;--wp--preset--gradient--vivid-cyan-blue-to-vivid-purple: linear-gradient(135deg,rgba(6,147,227,1) 0%,rgb(155,81,224) 100%);--wp--preset--gradient--light-green-cyan-to-vivid-green-cyan: linear-gradient(135deg,rgb(122,220,180) 0%,rgb(0,208,130) 100%);--wp--preset--gradient--luminous-vivid-amber-to-luminous-vivid-orange: linear-gradient(135deg,rgba(252,185,0,1) 0%,rgba(255,105,0,1) 100%);--wp--preset--gradient--luminous-vivid-orange-to-vivid-red: linear-gradient(135deg,rgba(255,105,0,1) 0%,rgb(207,46,46) 100%);--wp--preset--gradient--very-light-gray-to-cyan-bluish-gray: linear-gradient(135deg,rgb(238,238,238) 0%,rgb(169,184,195) 100%);--wp--preset--gradient--cool-to-warm-spectrum: linear-gradient(135deg,rgb(74,234,220) 0%,rgb(151,120,209) 20%,rgb(207,42,186) 40%,rgb(238,44,130) 60%,rgb(251,105,98) 80%,rgb(254,248,76) 100%);--wp--preset--gradient--blush-light-purple: linear-gradient(135deg,rgb(255,206,236) 0%,rgb(152,150,240) 100%);--wp--preset--gradient--blush-bordeaux: linear-gradient(135deg,rgb(254,205,165) 0%,rgb(254,45,45) 50%,rgb(107,0,62) 100%);--wp--preset--gradient--luminous-dusk: linear-gradient(135deg,rgb(255,203,112) 0%,rgb(199,81,192) 50%,rgb(65,88,208) 100%);--wp--preset--gradient--pale-ocean: linear-gradient(135deg,rgb(255,245,203) 0%,rgb(182,227,212) 50%,rgb(51,167,181) 100%);--wp--preset--gradient--electric-grass: linear-gradient(135deg,rgb(202,248,128) 0%,rgb(113,206,126) 100%);--wp--preset--gradient--midnight: linear-gradient(135deg,rgb(2,3,129) 0%,rgb(40,116,252) 100%);--wp--preset--font-size--small: 13px;--wp--preset--font-size--medium: 20px;--wp--preset--font-size--large: 36px;--wp--preset--font-size--x-large: 42px;--wp--preset--font-size--larger: 48px;--wp--preset--spacing--20: 0.44rem;--wp--preset--spacing--30: 0.67rem;--wp--preset--spacing--40: 1rem;--wp--preset--spacing--50: 1.5rem;--wp--preset--spacing--60: 2.25rem;--wp--preset--spacing--70: 3.38rem;--wp--preset--spacing--80: 5.06rem;--wp--preset--shadow--natural: 6px 6px 9px rgba(0, 0, 0, 0.2);--wp--preset--shadow--deep: 12px 12px 50px rgba(0, 0, 0, 0.4);--wp--preset--shadow--sharp: 6px 6px 0px rgba(0, 0, 0, 0.2);--wp--preset--shadow--outlined: 6px 6px 0px -3px rgba(255, 255, 255, 1), 6px 6px rgba(0, 0, 0, 1);--wp--preset--shadow--crisp: 6px 6px 0px rgba(0, 0, 0, 1);}:where(.is-layout-flex){gap: 0.5em;}:where(.is-layout-grid){gap: 0.5em;}body .is-layout-flex{display: flex;}body .is-layout-flex{flex-wrap: wrap;align-items: center;}body .is-layout-flex > *{margin: 0;}body .is-layout-grid{display: grid;}body .is-layout-grid > *{margin: 0;}:where(.wp-block-columns.is-layout-flex){gap: 2em;}:where(.wp-block-columns.is-layout-grid){gap: 2em;}:where(.wp-block-post-template.is-layout-flex){gap: 1.25em;}:where(.wp-block-post-template.is-layout-grid){gap: 1.25em;}.has-black-color{color: var(--wp--preset--color--black) !important;}.has-cyan-bluish-gray-color{color: var(--wp--preset--color--cyan-bluish-gray) !important;}.has-white-color{color: var(--wp--preset--color--white) !important;}.has-pale-pink-color{color: var(--wp--preset--color--pale-pink) !important;}.has-vivid-red-color{color: var(--wp--preset--color--vivid-red) !important;}.has-luminous-vivid-orange-color{color: var(--wp--preset--color--luminous-vivid-orange) !important;}.has-luminous-vivid-amber-color{color: var(--wp--preset--color--luminous-vivid-amber) !important;}.has-light-green-cyan-color{color: var(--wp--preset--color--light-green-cyan) !important;}.has-vivid-green-cyan-color{color: var(--wp--preset--color--vivid-green-cyan) !important;}.has-pale-cyan-blue-color{color: var(--wp--preset--color--pale-cyan-blue) !important;}.has-vivid-cyan-blue-color{color: var(--wp--preset--color--vivid-cyan-blue) !important;}.has-vivid-purple-color{color: var(--wp--preset--color--vivid-purple) !important;}.has-black-background-color{background-color: var(--wp--preset--color--black) !important;}.has-cyan-bluish-gray-background-color{background-color: var(--wp--preset--color--cyan-bluish-gray) !important;}.has-white-background-color{background-color: var(--wp--preset--color--white) !important;}.has-pale-pink-background-color{background-color: var(--wp--preset--color--pale-pink) !important;}.has-vivid-red-background-color{background-color: var(--wp--preset--color--vivid-red) !important;}.has-luminous-vivid-orange-background-color{background-color: var(--wp--preset--color--luminous-vivid-orange) !important;}.has-luminous-vivid-amber-background-color{background-color: var(--wp--preset--color--luminous-vivid-amber) !important;}.has-light-green-cyan-background-color{background-color: var(--wp--preset--color--light-green-cyan) !important;}.has-vivid-green-cyan-background-color{background-color: var(--wp--preset--color--vivid-green-cyan) !important;}.has-pale-cyan-blue-background-color{background-color: var(--wp--preset--color--pale-cyan-blue) !important;}.has-vivid-cyan-blue-background-color{background-color: var(--wp--preset--color--vivid-cyan-blue) !important;}.has-vivid-purple-background-color{background-color: var(--wp--preset--color--vivid-purple) !important;}.has-black-border-color{border-color: var(--wp--preset--color--black) !important;}.has-cyan-bluish-gray-border-color{border-color: var(--wp--preset--color--cyan-bluish-gray) !important;}.has-white-border-color{border-color: var(--wp--preset--color--white) !important;}.has-pale-pink-border-color{border-color: var(--wp--preset--color--pale-pink) !important;}.has-vivid-red-border-color{border-color: var(--wp--preset--color--vivid-red) !important;}.has-luminous-vivid-orange-border-color{border-color: var(--wp--preset--color--luminous-vivid-orange) !important;}.has-luminous-vivid-amber-border-color{border-color: var(--wp--preset--color--luminous-vivid-amber) !important;}.has-light-green-cyan-border-color{border-color: var(--wp--preset--color--light-green-cyan) !important;}.has-vivid-green-cyan-border-color{border-color: var(--wp--preset--color--vivid-green-cyan) !important;}.has-pale-cyan-blue-border-color{border-color: var(--wp--preset--color--pale-cyan-blue) !important;}.has-vivid-cyan-blue-border-color{border-color: var(--wp--preset--color--vivid-cyan-blue) !important;}.has-vivid-purple-border-color{border-color: var(--wp--preset--color--vivid-purple) !important;}.has-vivid-cyan-blue-to-vivid-purple-gradient-background{background: var(--wp--preset--gradient--vivid-cyan-blue-to-vivid-purple) !important;}.has-light-green-cyan-to-vivid-green-cyan-gradient-background{background: var(--wp--preset--gradient--light-green-cyan-to-vivid-green-cyan) !important;}.has-luminous-vivid-amber-to-luminous-vivid-orange-gradient-background{background: var(--wp--preset--gradient--luminous-vivid-amber-to-luminous-vivid-orange) !important;}.has-luminous-vivid-orange-to-vivid-red-gradient-background{background: var(--wp--preset--gradient--luminous-vivid-orange-to-vivid-red) !important;}.has-very-light-gray-to-cyan-bluish-gray-gradient-background{background: var(--wp--preset--gradient--very-light-gray-to-cyan-bluish-gray) !important;}.has-cool-to-warm-spectrum-gradient-background{background: var(--wp--preset--gradient--cool-to-warm-spectrum) !important;}.has-blush-light-purple-gradient-background{background: var(--wp--preset--gradient--blush-light-purple) !important;}.has-blush-bordeaux-gradient-background{background: var(--wp--preset--gradient--blush-bordeaux) !important;}.has-luminous-dusk-gradient-background{background: var(--wp--preset--gradient--luminous-dusk) !important;}.has-pale-ocean-gradient-background{background: var(--wp--preset--gradient--pale-ocean) !important;}.has-electric-grass-gradient-background{background: var(--wp--preset--gradient--electric-grass) !important;}.has-midnight-gradient-background{background: var(--wp--preset--gradient--midnight) !important;}.has-small-font-size{font-size: var(--wp--preset--font-size--small) !important;}.has-medium-font-size{font-size: var(--wp--preset--font-size--medium) !important;}.has-large-font-size{font-size: var(--wp--preset--font-size--large) !important;}.has-x-large-font-size{font-size: var(--wp--preset--font-size--x-large) !important;} .wp-block-navigation a:where(:not(.wp-element-button)){color: inherit;} :where(.wp-block-post-template.is-layout-flex){gap: 1.25em;}:where(.wp-block-post-template.is-layout-grid){gap: 1.25em;} :where(.wp-block-columns.is-layout-flex){gap: 2em;}:where(.wp-block-columns.is-layout-grid){gap: 2em;} .wp-block-pullquote{font-size: 1.5em;line-height: 1.6;} </style> <link rel='stylesheet' id='cpschool-styles-css' href='https://blog.arxiv.org/wp-content/themes/cpschool/css/theme.min.css?ver=0.9.10.1733816539' type='text/css' media='all' /> <link rel='stylesheet' id='aos-css' href='https://blog.arxiv.org/wp-content/themes/cpschool/css/aos.css?ver=0.9.10.1582726456' type='text/css' media='all' /> <script type="text/javascript" src="https://blog.arxiv.org/wp-includes/js/jquery/jquery.min.js?ver=3.7.1" id="jquery-core-js"></script> <script type="text/javascript" src="https://blog.arxiv.org/wp-includes/js/jquery/jquery-migrate.min.js?ver=3.4.1" id="jquery-migrate-js"></script> <link rel="https://api.w.org/" href="https://blog.arxiv.org/wp-json/" /><link rel="EditURI" type="application/rsd+xml" title="RSD" href="https://blog.arxiv.org/xmlrpc.php?rsd" /> <meta name="generator" content="arXiv blog 6.5.5 - https://blog.arxiv.org" /> <style> @media screen and (max-width: 782px) { #wpadminbar li#wp-admin-bar-log-in, #wpadminbar li#wp-admin-bar-register { display: block; } #wpadminbar li#wp-admin-bar-log-in a, #wpadminbar li#wp-admin-bar-register a { padding: 0 8px; } } </style> <style id="simpler-css-style" type="text/css"> h1 { line-height: 1.8; } h1, h2, h3, h4 { font-weight: 600; } p, article li { margin-left: 15px; font-size: 1em; } h3.widget-title { font-size: 1.4em; } .widget li { display: flex; } .widget li span.post-date { float: none; flex-shrink: 0; } .widget li a { flex-grow: 1; font-size: 1em; }</style><!-- end of custom css --> <script type="text/javascript"> var jQueryMigrateHelperHasSentDowngrade = false; window.onerror = function( msg, url, line, col, error ) { // Break out early, do not processing if a downgrade reqeust was already sent. if ( jQueryMigrateHelperHasSentDowngrade ) { return true; } var xhr = new XMLHttpRequest(); var nonce = '29f4864208'; var jQueryFunctions = [ 'andSelf', 'browser', 'live', 'boxModel', 'support.boxModel', 'size', 'swap', 'clean', 'sub', ]; var match_pattern = /\)\.(.+?) is not a function/; var erroredFunction = msg.match( match_pattern ); // If there was no matching functions, do not try to downgrade. if ( null === erroredFunction || typeof erroredFunction !== 'object' || typeof erroredFunction[1] === "undefined" || -1 === jQueryFunctions.indexOf( erroredFunction[1] ) ) { return true; } // Set that we've now attempted a downgrade request. jQueryMigrateHelperHasSentDowngrade = true; xhr.open( 'POST', 'https://blog.arxiv.org/wp-admin/admin-ajax.php' ); xhr.setRequestHeader( 'Content-Type', 'application/x-www-form-urlencoded' ); xhr.onload = function () { var response, reload = false; if ( 200 === xhr.status ) { try { response = JSON.parse( xhr.response ); reload = response.data.reload; } catch ( e ) { reload = false; } } // Automatically reload the page if a deprecation caused an automatic downgrade, ensure visitors get the best possible experience. if ( reload ) { location.reload(); } }; xhr.send( encodeURI( 'action=jquery-migrate-downgrade-version&_wpnonce=' + nonce ) ); // Suppress error alerts in older browsers return true; } </script> <meta name="mobile-web-app-capable" content="yes"> <meta name="apple-mobile-web-app-capable" content="yes"> <meta name="apple-mobile-web-app-title" content="arXiv blog - News from arXiv.org"> <!-- Google Analytics tracking code output by Beehive Analytics Pro --> <script async src="https://www.googletagmanager.com/gtag/js?id=G-PVFQG5SSG0&l=beehiveDataLayer"></script> <script> window.beehiveDataLayer = window.beehiveDataLayer || []; function gaplusu() {beehiveDataLayer.push(arguments);} gaplusu('js', new Date()) gaplusu('config', 'G-PVFQG5SSG0', { 'anonymize_ip': false, 'allow_google_signals': false, }) </script> <style type="text/css"> /* <![CDATA[ */ img.latex { vertical-align: middle; border: none; } /* ]]> */ </style> <link rel="icon" href="https://blog.arxiv.org/files/2023/03/favicon.png" sizes="32x32" /> <link rel="icon" href="https://blog.arxiv.org/files/2023/03/favicon.png" sizes="192x192" /> <link rel="apple-touch-icon" href="https://blog.arxiv.org/files/2023/03/favicon.png" /> <meta name="msapplication-TileImage" content="https://blog.arxiv.org/files/2023/03/favicon.png" /> <style type="text/css">#wp-admin-bar-abm-login{display:block!important}body .wp-video-shortcode video,body video.wp-video-shortcode{margin:0;padding:0;background:0 0;border:none;box-shadow:none;min-width:0;height:auto;min-height:0}.screen-reader-text:not(button){clip:rect(1px,1px,1px,1px);position:absolute!important;height:1px;width:1px;overflow:hidden}</style><style id="kirki-inline-styles">.container{max-width:1140px;}:root{--site-width:1140px;--content-width:1140px;--body-font-size:100;--roundness:3px;--shadows:4px;--color-bg:#ffffff;--color-bg-alt:#f9f7f7;--color-bg-contrast:#000000;--color-bg-accent:#1f5e96;--color-bg-accent-a:rgba(31,94,150,0.5);--color-bg-accent-contrast:#ffffff;--color-bg-accent-hl:#0d63a9;--color-bg-accent-hl-a:rgba(13,99,169,0.5);--color-bg-accent-hl-contrast:#ffffff;--color-bg-alt-contrast:#000000;--color-bg-alt-accent:#645e53;--color-bg-alt-accent-a:rgba(100,94,83,0.5);--color-bg-alt-accent-contrast:#ffffff;--color-bg-alt-accent-hl:#0c60a6;--color-bg-alt-accent-hl-a:rgba(12,96,166,0.5);--color-bg-alt-accent-hl-contrast:#ffffff;--color-boxes:#f9f7f7;--color-boxes-contrast:#000000;--color-boxes-accent:#1f5e96;--color-boxes-accent-a:rgba(31,94,150,0.5);--color-boxes-accent-contrast:#ffffff;--color-boxes-accent-hl:#0c60a6;--color-boxes-accent-hl-a:rgba(12,96,166,0.5);--color-boxes-accent-hl-contrast:#ffffff;--header-main-height:110.688px;--header-main-logo-image-width:138px;--header-main-gap-height:0px;--header-main-padding-v:40;--header-main-font-size:100;--header-secondary-font-size:100;--header-secondary-padding-v:0;--hero-main-img-opacity:0.1;--hero-main-header-main-opacity:1;--headers-font-size:86;}body{font-family:public_sans;}#navbar-main .nav{font-family:inherit;}.h1,.h2,.h3,.h4,.h5,.h6,h1,h2,h3,h4,h5,h6{font-family:inherit;}</style></head> <body class="home blog admin-bar no-customize-support wp-custom-logo wp-embed-responsive animations-enabled h-style-separator h-style-separator-bottom h-style-separator-hl sidebars-check-sticky group-blog has-sidebar hfeed entries-list"> <div id="wpadminbar" class="nojq nojs"> <div class="quicklinks" id="wp-toolbar" role="navigation" aria-label="Toolbar"> <ul role='menu' id='wp-admin-bar-top-secondary' class="ab-top-secondary ab-top-menu"><li id='wp-admin-bar-search' class="admin-bar-search"><div class="ab-item ab-empty-item" tabindex="-1" role="menuitem"><form action="https://blog.arxiv.org/" method="get" id="adminbarsearch"><input class="adminbar-input" name="s" id="adminbar-search" type="text" value="" maxlength="150" /><label for="adminbar-search" class="screen-reader-text">Search</label><input type="submit" class="adminbar-button" value="Search" /></form></div></li><li id='wp-admin-bar-log-in'><a class='ab-item' role="menuitem" href='https://blogs.cornell.edu/arxiv/wp-login.php'>Log In</a></li></ul> </div> </div> <div class="site" id="page"> <a class="skip-link sr-only sr-only-focusable" href="#content">Skip to content</a> <div id="wrapper-navbar-main-top" ></div> <div id="wrapper-navbar-main" class="wrapper-navbar" itemscope itemtype="http://schema.org/WebSite"> <nav id="navbar-main" class="navbar navbar-expand-md nav-styling-underline has-background has-header-main-bg-color-background-color" aria-label="main"> <div class="navbar-container container"> <!-- Your site title as branding in the menu --> <div class="navbar-brand-holder"> <a class="navbar-brand logo-font custom-bg-disabled" rel="home" href="https://arxiv.org" title="arXiv blog" itemprop="url"> <img width="1030" height="464" src="https://blog.arxiv.org/files/2021/02/arxiv-logo-1.png" class="img-fluid" alt="arXiv's logo" title="arxiv-logo" decoding="async" fetchpriority="high" srcset="https://blog.arxiv.org/files/2021/02/arxiv-logo-1.png 1030w, https://blog.arxiv.org/files/2021/02/arxiv-logo-1-300x135.png 300w, https://blog.arxiv.org/files/2021/02/arxiv-logo-1-1024x461.png 1024w, https://blog.arxiv.org/files/2021/02/arxiv-logo-1-768x346.png 768w" sizes="(max-width: 1030px) 100vw, 1030px" /> </a> </div> <!-- end custom logo --> <div class="navbar-navs-container"> <div id="navbar-main-nav-desktop" class="navbar-nav-container"><ul id="menu-main-desktop" class="nav navbar-nav"><li itemscope="itemscope" itemtype="https://www.schema.org/SiteNavigationElement" id="menu-item-menu-main-desktop-9" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-9 nav-item"><a class="nav-link" title="Blog Home" href="https://blogs.cornell.edu/arxiv/"><span class="menu-item-text">Blog Home</span></a></li> <li itemscope="itemscope" itemtype="https://www.schema.org/SiteNavigationElement" id="menu-item-menu-main-desktop-10" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-10 nav-item"><a class="nav-link" title="arXiv Home" target="_blank" rel="noopener noreferrer" href="https://arxiv.org/"><span class="menu-item-text">arXiv Home</span></a></li> <li itemscope="itemscope" itemtype="https://www.schema.org/SiteNavigationElement" id="menu-item-menu-main-desktop-11" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-11 nav-item"><a class="nav-link" title="About" target="_blank" rel="noopener noreferrer" href="https://info.arxiv.org/"><span class="menu-item-text">About</span></a></li> </ul></div> <div id="navbar-main-nav-buttons"> <ul class="nav navbar-nav navbar-button-nav-right"> <li id="navbar-main-btn-search" > <button type="button" class="btn btn-secondary nav-link has-styling" data-toggle="modal" data-target="#modal-search"> <i aria-hidden="true" class="cps-icon cps-icon-search"></i> <span aria-hidden="true" class="d-none">Search</span> <span class="sr-only">Toggle search interface</span> </button> </li> <li id="navbar-main-btn-slide-in-menu" class="btn-modal-slide-in-menu-holder has-mobile"> <button type="button" class="btn btn-secondary nav-link has-styling" data-toggle="modal" data-target="#modal-slide-in-menu"> <i aria-hidden="true" class="cps-icon cps-icon-menu"></i> <span aria-hidden="true" class="d-none">Menu</span> <span class="sr-only">Toggle extended navigation</span> </button> </li> </ul> </div> </div> </div><!-- #navbar-container --> </nav> </div><!-- #wrapper-navbar end --> <div class="main-wrapper wrapper" id="index-wrapper"> <div class="container" id="content"> <div class="row"> <!-- Do the left sidebar check and opens the primary div --> <div class="col-md-8 col-xl-9 content-area" id="primary"> <main class="site-main" id="main"> <div class="entries-row row image-on-top"> <div class="entry-col col-12"> <article class="post-1639 post type-post status-publish format-standard hentry category-about-arxiv category-arxiv-updates" id="post-1639"> <header class="entry-header"> <h2 class="entry-title"><a href="https://blog.arxiv.org/2024/12/17/attention-arxiv-users-arxiv-privacy-policy-updated/" rel="bookmark">Attention arXiv users: arXiv privacy policy updated</a></h2> <div class="entry-meta"> <ul class="list-inline"> <li class="post-date list-inline-item"> <span class="sr-only">Publication date</span> <span class="meta-icon" aria-hidden="true"> <i class="cps-icon cps-icon-calendar"></i> </span> <span class="meta-text"> December 17, 2024 </span> </li> </ul> </div><!-- .entry-meta --> </header><!-- .entry-header --> <div class="entry-content"> <p>Attention all users of arXiv: as of December 12th, 2024, the arXiv privacy policy has been updated. arXiv’s updated privacy policy can be found here: https://info.arxiv.org/help/policies/privacy_policy.html The privacy notice describes what information arXiv collects from you when you visit arxiv.org and how we use this information. The arXiv privacy policy covers all visitors to arxiv.org,…<span class="cpschool-read-more-link-holder"><a class="btn btn-secondary cpschool-read-more-link" href="https://blog.arxiv.org/2024/12/17/attention-arxiv-users-arxiv-privacy-policy-updated/">Continue Reading <span class="sr-only">Attention arXiv users: arXiv privacy policy updated</span></a></span></p> </div><!-- .entry-content --> </article><!-- #post-## --> </div> <div class="entry-col col-12"> <article class="post-1627 post type-post status-publish format-standard hentry category-about-arxiv category-arxiv-events category-arxiv-updates" id="post-1627"> <header class="entry-header"> <h2 class="entry-title"><a href="https://blog.arxiv.org/2024/11/21/attention-authors-temporary-changes-to-announcement-schedule-due-to-end-of-year-holidays/" rel="bookmark">Attention Authors: Temporary changes to announcement schedule due to end-of-year holidays</a></h2> <div class="entry-meta"> <ul class="list-inline"> <li class="post-date list-inline-item"> <span class="sr-only">Publication date</span> <span class="meta-icon" aria-hidden="true"> <i class="cps-icon cps-icon-calendar"></i> </span> <span class="meta-text"> November 21, 2024 </span> </li> </ul> </div><!-- .entry-meta --> </header><!-- .entry-header --> <div class="entry-content"> <p>Planning a submission to arXiv in the next few weeks? The 2024 end-of-the-year holiday stretch will be temporarily impacting arXiv鈥檚 mailings, help desk, and announcement schedule. This temporary change only affects the announcement of new submissions; arXiv servers will otherwise remain in operation, existing papers will still be available to browse, and arXiv will be…<span class="cpschool-read-more-link-holder"><a class="btn btn-secondary cpschool-read-more-link" href="https://blog.arxiv.org/2024/11/21/attention-authors-temporary-changes-to-announcement-schedule-due-to-end-of-year-holidays/">Continue Reading <span class="sr-only">Attention Authors: Temporary changes to announcement schedule due to end-of-year holidays</span></a></span></p> </div><!-- .entry-content --> </article><!-- #post-## --> </div> <div class="entry-col col-12"> <article class="post-1623 post type-post status-publish format-standard hentry category-about-arxiv category-arxiv-updates category-preprints" id="post-1623"> <header class="entry-header"> <h2 class="entry-title"><a href="https://blog.arxiv.org/2024/11/04/arxiv-sets-new-record-for-monthly-submissions-again/" rel="bookmark">arXiv sets new record for monthly submissions (again)!</a></h2> <div class="entry-meta"> <ul class="list-inline"> <li class="post-date list-inline-item"> <span class="sr-only">Publication date</span> <span class="meta-icon" aria-hidden="true"> <i class="cps-icon cps-icon-calendar"></i> </span> <span class="meta-text"> November 4, 2024 </span> </li> </ul> </div><!-- .entry-meta --> </header><!-- .entry-header --> <div class="entry-content"> <p>Submissions to arXiv continue to grow! arXiv has tracked the number of new submissions we receive every month from our very first submission all the way back in August 1991. We share our monthly submission data on our stats page (which houses lots of interesting break downs of the data). In the month of October…<span class="cpschool-read-more-link-holder"><a class="btn btn-secondary cpschool-read-more-link" href="https://blog.arxiv.org/2024/11/04/arxiv-sets-new-record-for-monthly-submissions-again/">Continue Reading <span class="sr-only">arXiv sets new record for monthly submissions (again)!</span></a></span></p> </div><!-- .entry-content --> </article><!-- #post-## --> </div> <div class="entry-col col-12"> <article class="post-1618 post type-post status-publish format-standard hentry category-about-arxiv category-arxiv-events category-preprints" id="post-1618"> <header class="entry-header"> <h2 class="entry-title"><a href="https://blog.arxiv.org/2024/10/22/celebrate-open-access-week-with-arxiv/" rel="bookmark">Celebrate Open Access Week with arXiv!</a></h2> <div class="entry-meta"> <ul class="list-inline"> <li class="post-date list-inline-item"> <span class="sr-only">Publication date</span> <span class="meta-icon" aria-hidden="true"> <i class="cps-icon cps-icon-calendar"></i> </span> <span class="meta-text"> October 22, 2024 </span> </li> </ul> </div><!-- .entry-meta --> </header><!-- .entry-header --> <div class="entry-content"> <p>Happy International Open Access Week! October 21st through October 27th, 2024 is International Open Access Week (or OA Week), where across the globe we celebrate and highlight the importance of open access infrastructures and movements. We believe that free access to knowledge is an essential human right, and this #OAWeek we will be discussing how…<span class="cpschool-read-more-link-holder"><a class="btn btn-secondary cpschool-read-more-link" href="https://blog.arxiv.org/2024/10/22/celebrate-open-access-week-with-arxiv/">Continue Reading <span class="sr-only">Celebrate Open Access Week with arXiv!</span></a></span></p> </div><!-- .entry-content --> </article><!-- #post-## --> </div> <div class="entry-col col-12"> <article class="post-1614 post type-post status-publish format-standard hentry category-uncategorized" id="post-1614"> <header class="entry-header"> <h2 class="entry-title"><a href="https://blog.arxiv.org/2024/10/04/attention-authors-temporary-changes-to-announcement-schedule-due-to-staff-development/" rel="bookmark">Attention Authors: Temporary changes to announcement schedule due to staff development</a></h2> <div class="entry-meta"> <ul class="list-inline"> <li class="post-date list-inline-item"> <span class="sr-only">Publication date</span> <span class="meta-icon" aria-hidden="true"> <i class="cps-icon cps-icon-calendar"></i> </span> <span class="meta-text"> October 4, 2024 </span> </li> </ul> </div><!-- .entry-meta --> </header><!-- .entry-header --> <div class="entry-content"> <p>This coming聽Tuesday, October 8, 2024, the entire arXiv staff will be attending an in person all-staff meeting. Because all editorial staff will be participating in this professional development, it will temporarily affect arXiv鈥檚 mailings, help desk, and announcement schedule. This brief change will only affect the announcement of new submissions; arXiv servers will otherwise remain…<span class="cpschool-read-more-link-holder"><a class="btn btn-secondary cpschool-read-more-link" href="https://blog.arxiv.org/2024/10/04/attention-authors-temporary-changes-to-announcement-schedule-due-to-staff-development/">Continue Reading <span class="sr-only">Attention Authors: Temporary changes to announcement schedule due to staff development</span></a></span></p> </div><!-- .entry-content --> </article><!-- #post-## --> </div> <div class="entry-col col-12"> <article class="post-1607 post type-post status-publish format-standard hentry category-uncategorized" id="post-1607"> <header class="entry-header"> <h2 class="entry-title"><a href="https://blog.arxiv.org/2024/09/29/arxiv-has-been-set-to-read-only-while-we-investigate-a-db-replication-issue/" rel="bookmark">arXiv database issues have been resolved.</a></h2> <div class="entry-meta"> <ul class="list-inline"> <li class="post-date list-inline-item"> <span class="sr-only">Publication date</span> <span class="meta-icon" aria-hidden="true"> <i class="cps-icon cps-icon-calendar"></i> </span> <span class="meta-text"> September 29, 2024 </span> </li> </ul> </div><!-- .entry-meta --> </header><!-- .entry-header --> <div class="entry-content"> <p>Processing of new submissions is now back to normal. Please check https://status.arxiv.org/ for more updates….<span class="cpschool-read-more-link-holder"><a class="btn btn-secondary cpschool-read-more-link" href="https://blog.arxiv.org/2024/09/29/arxiv-has-been-set-to-read-only-while-we-investigate-a-db-replication-issue/">Continue Reading <span class="sr-only">arXiv database issues have been resolved.</span></a></span></p> </div><!-- .entry-content --> </article><!-- #post-## --> </div> <div class="entry-col col-12"> <article class="post-1599 post type-post status-publish format-standard hentry category-about-arxiv category-arxiv-updates" id="post-1599"> <header class="entry-header"> <h2 class="entry-title"><a href="https://blog.arxiv.org/2024/09/13/attention-arxiv-users-arxiv-mirrors-to-shut-down-september-15th-2024/" rel="bookmark">Attention arXiv users: arXiv mirrors to shut down September 15th, 2024</a></h2> <div class="entry-meta"> <ul class="list-inline"> <li class="post-date list-inline-item"> <span class="sr-only">Publication date</span> <span class="meta-icon" aria-hidden="true"> <i class="cps-icon cps-icon-calendar"></i> </span> <span class="meta-text"> September 13, 2024 </span> </li> </ul> </div><!-- .entry-meta --> </header><!-- .entry-header --> <div class="entry-content"> <p>It is time to say goodbye . . . to the arXiv mirrors. After many years of service, all remaining arXiv mirrors will be officially shut down after Sunday, September 15, 2024. The arXiv mirrors were originally created in an attempt to provide better local access to the arXiv corpus. In the early days of…<span class="cpschool-read-more-link-holder"><a class="btn btn-secondary cpschool-read-more-link" href="https://blog.arxiv.org/2024/09/13/attention-arxiv-users-arxiv-mirrors-to-shut-down-september-15th-2024/">Continue Reading <span class="sr-only">Attention arXiv users: arXiv mirrors to shut down September 15th, 2024</span></a></span></p> </div><!-- .entry-content --> </article><!-- #post-## --> </div> <div class="entry-col col-12"> <article class="post-1596 post type-post status-publish format-standard hentry category-about-arxiv category-arxiv-updates" id="post-1596"> <header class="entry-header"> <h2 class="entry-title"><a href="https://blog.arxiv.org/2024/08/29/attention-authors-temporary-changes-to-announcement-schedule-due-to-labor-day-holiday/" rel="bookmark">Attention Authors: Temporary changes to announcement schedule due to Labor Day holiday</a></h2> <div class="entry-meta"> <ul class="list-inline"> <li class="post-date list-inline-item"> <span class="sr-only">Publication date</span> <span class="meta-icon" aria-hidden="true"> <i class="cps-icon cps-icon-calendar"></i> </span> <span class="meta-text"> August 29, 2024 </span> </li> </ul> </div><!-- .entry-meta --> </header><!-- .entry-header --> <div class="entry-content"> <p>This coming聽Monday, September 2nd, 2024, the arXiv team will be observing Labor Day, a federal holiday in the United States. This holiday will temporarily affect arXiv鈥檚 mailings, help desk, and announcement schedule. This brief change will only affect the announcement of new submissions; arXiv servers will otherwise remain in operation, existing papers will still be…<span class="cpschool-read-more-link-holder"><a class="btn btn-secondary cpschool-read-more-link" href="https://blog.arxiv.org/2024/08/29/attention-authors-temporary-changes-to-announcement-schedule-due-to-labor-day-holiday/">Continue Reading <span class="sr-only">Attention Authors: Temporary changes to announcement schedule due to Labor Day holiday</span></a></span></p> </div><!-- .entry-content --> </article><!-- #post-## --> </div> <div class="entry-col col-12"> <article class="post-1592 post type-post status-publish format-standard hentry category-about-arxiv category-arxiv-accessibility category-arxiv-events category-arxiv-updates" id="post-1592"> <header class="entry-header"> <h2 class="entry-title"><a href="https://blog.arxiv.org/2024/08/09/arxiv-accessibility-2024/" rel="bookmark">The arXiv Accessibility Forum is back for another year – spread the word!</a></h2> <div class="entry-meta"> <ul class="list-inline"> <li class="post-date list-inline-item"> <span class="sr-only">Publication date</span> <span class="meta-icon" aria-hidden="true"> <i class="cps-icon cps-icon-calendar"></i> </span> <span class="meta-text"> August 9, 2024 </span> </li> </ul> </div><!-- .entry-meta --> </header><!-- .entry-header --> <div class="entry-content"> <p>In 2023, arXiv had its very first Accessibility Forum to help center accessibility issues in the open research and scientific communities. This inaugural Forum gathered accessibility experts and researchers with disabilities from across the globe to discuss potential solutions and barriers to access in science, with the goal of making accessible research papers a reality….<span class="cpschool-read-more-link-holder"><a class="btn btn-secondary cpschool-read-more-link" href="https://blog.arxiv.org/2024/08/09/arxiv-accessibility-2024/">Continue Reading <span class="sr-only">The arXiv Accessibility Forum is back for another year – spread the word!</span></a></span></p> </div><!-- .entry-content --> </article><!-- #post-## --> </div> <div class="entry-col col-12"> <article class="post-1586 post type-post status-publish format-standard hentry category-about-arxiv" id="post-1586"> <header class="entry-header"> <h2 class="entry-title"><a href="https://blog.arxiv.org/2024/07/01/year-in-review-arxiv-annual-report-posted/" rel="bookmark">Year in Review: arXiv annual report posted</a></h2> <div class="entry-meta"> <ul class="list-inline"> <li class="post-date list-inline-item"> <span class="sr-only">Publication date</span> <span class="meta-icon" aria-hidden="true"> <i class="cps-icon cps-icon-calendar"></i> </span> <span class="meta-text"> July 1, 2024 </span> </li> </ul> </div><!-- .entry-meta --> </header><!-- .entry-header --> <div class="entry-content"> <p>arXiv’s 2023 Annual Report is now available online! arXiv began publishing annual reports in 2020 to give our community a summary of arXiv’s initiatives, accomplishments, and financial activities each year. We also use our annual report as an opportunity to thank our members, sponsors, affiliates, individual donors, and arXiv enthusiasts – AKA, you! You can…<span class="cpschool-read-more-link-holder"><a class="btn btn-secondary cpschool-read-more-link" href="https://blog.arxiv.org/2024/07/01/year-in-review-arxiv-annual-report-posted/">Continue Reading <span class="sr-only">Year in Review: arXiv annual report posted</span></a></span></p> </div><!-- .entry-content --> </article><!-- #post-## --> </div> </div> </main><!-- #main --> <!-- The pagination component --> <nav aria-label="Posts pagination"> <ul class="pagination"> <li class="page-item active"> <span aria-current="page" class="page-link current"><span class="sr-only">Page</span>1</span> </li> <li class="page-item"> <a class="page-link" href="https://blog.arxiv.org/page/2/"><span class="sr-only">Page</span>2</a> </li> <li class="page-item"> <a class="page-link" href="https://blog.arxiv.org/page/3/"><span class="sr-only">Page</span>3</a> </li> <li class="page-item"> <span class="page-link dots">…</span> </li> <li class="page-item"> <a class="page-link" href="https://blog.arxiv.org/page/21/"><span class="sr-only">Page</span>21</a> </li> <li class="page-item"> <a class="next page-link" href="https://blog.arxiv.org/page/2/"><span class="sr-only">Next page</span><span aria-hidden="true">»</span></a> </li> </ul> </nav> <!-- Do the right sidebar check --> </div><!-- #closing the primary container from /templates/global-templates/left-sidebar-check.php --> <aside class="col-md-4 col-xl-3 widget-area sidebar-widget-area sidebar-widget-area-boxed" id="right-sidebar"> <div class="sidebar-widget-area-content"> <div id="search-3" class="sidebar-widget widget widget_search"> <form method="get" id="searchform" action="https://blog.arxiv.org/" role="search"> <label class="sr-only" for="searchform-s">Search</label> <div class="input-group"> <input class="field form-control" id="searchform-s" name="s" type="text" placeholder="Search..." value=""> <span class="input-group-append"> <button class="submit btn btn-primary" id="searchform-submit" type="submit"> <i aria-hidden="true" class="cps-icon cps-icon-search"></i> <span class="sr-only">Search Site</span> </button> </span> </div> </form> </div><div id="categories-5" class="sidebar-widget widget widget_categories"><h2 class="widget-title h h3">Categories</h2><form action="https://blog.arxiv.org" method="get"><label class="screen-reader-text" for="cat">Categories</label><select name='cat' id='cat' class='postform'> <option value='-1'>Select Category</option> <option class="level-0" value="600913">about arXiv</option> <option class="level-0" value="600934">arXiv accessibility</option> <option class="level-0" value="600909">arXiv development</option> <option class="level-0" value="600927">arXiv events</option> <option class="level-0" value="600929">arXiv fundraising</option> <option class="level-0" value="600910">arXiv jobs</option> <option class="level-0" value="600930">arXiv membership</option> <option class="level-0" value="600905">arXiv people</option> <option class="level-0" value="600914">arXiv repository news</option> <option class="level-0" value="600907">arXiv support</option> <option class="level-0" value="600917">arXiv updates</option> <option class="level-0" value="600918">arXiv UX</option> <option class="level-0" value="600906">arXiv-NG</option> <option class="level-0" value="600928">arXivLabs</option> <option class="level-0" value="600931">Governance</option> <option class="level-0" value="600915">Member Advisory Board</option> <option class="level-0" value="97520">moderation</option> <option class="level-0" value="600911">preprints</option> <option class="level-0" value="600916">Scientific Advisory Board</option> <option class="level-0" value="1">Uncategorized</option> </select> </form><script type="text/javascript"> /* <![CDATA[ */ (function() { var dropdown = document.getElementById( "cat" ); function onCatChange() { if ( dropdown.options[ dropdown.selectedIndex ].value > 0 ) { dropdown.parentNode.submit(); } } dropdown.onchange = onCatChange; })(); /* ]]> */ </script> </div> <div id="recent-posts-7" class="sidebar-widget widget widget_recent_entries"> <h2 class="widget-title h h3">Recent</h2> <ul> <li> <a href="https://blog.arxiv.org/2024/12/17/attention-arxiv-users-arxiv-privacy-policy-updated/">Attention arXiv users: arXiv privacy policy updated</a> </li> <li> <a href="https://blog.arxiv.org/2024/11/21/attention-authors-temporary-changes-to-announcement-schedule-due-to-end-of-year-holidays/">Attention Authors: Temporary changes to announcement schedule due to end-of-year holidays</a> </li> <li> <a href="https://blog.arxiv.org/2024/11/04/arxiv-sets-new-record-for-monthly-submissions-again/">arXiv sets new record for monthly submissions (again)!</a> </li> <li> <a href="https://blog.arxiv.org/2024/10/22/celebrate-open-access-week-with-arxiv/">Celebrate Open Access Week with arXiv!</a> </li> </ul> </div><div id="search-3" class="sidebar-widget widget widget_search"> <form method="get" id="searchform" action="https://blog.arxiv.org/" role="search"> <label class="sr-only" for="searchform-s">Search</label> <div class="input-group"> <input class="field form-control" id="searchform-s" name="s" type="text" placeholder="Search..." value=""> <span class="input-group-append"> <button class="submit btn btn-primary" id="searchform-submit" type="submit"> <i aria-hidden="true" class="cps-icon cps-icon-search"></i> <span class="sr-only">Search Site</span> </button> </span> </div> </form> </div><div id="meta-2" class="sidebar-widget widget widget_meta"><h2 class="widget-title h h3">Subscribe</h2> <ul> <li><a href="https://blogs.cornell.edu/arxiv/wp-login.php">Log in</a></li> <li><a href="https://blog.arxiv.org/feed/" title="Syndicate this site using RSS 2.0">Entries <abbr title="Really Simple Syndication">RSS</abbr></a></li> <li><a href="https://blog.arxiv.org/comments/feed/" title="The latest comments to all posts in RSS">Comments <abbr title="Really Simple Syndication">RSS</abbr></a></li> <li><a href="http://blogs.cornell.edu/" title="Powered by CU Blog Service">CU Blog Service</a></li> </ul> </div><div id="categories-5" class="sidebar-widget widget widget_categories"><h2 class="widget-title h h3">Categories</h2><form action="https://blog.arxiv.org" method="get"><label class="screen-reader-text" for="categories-dropdown-5">Categories</label><select name='cat' id='categories-dropdown-5' class='postform'> <option value='-1'>Select Category</option> <option class="level-0" value="600913">about arXiv</option> <option class="level-0" value="600934">arXiv accessibility</option> <option class="level-0" value="600909">arXiv development</option> <option class="level-0" value="600927">arXiv events</option> <option class="level-0" value="600929">arXiv fundraising</option> <option class="level-0" value="600910">arXiv jobs</option> <option class="level-0" value="600930">arXiv membership</option> <option class="level-0" value="600905">arXiv people</option> <option class="level-0" value="600914">arXiv repository news</option> <option class="level-0" value="600907">arXiv support</option> <option class="level-0" value="600917">arXiv updates</option> <option class="level-0" value="600918">arXiv UX</option> <option class="level-0" value="600906">arXiv-NG</option> <option class="level-0" value="600928">arXivLabs</option> <option class="level-0" value="600931">Governance</option> <option class="level-0" value="600915">Member Advisory Board</option> <option class="level-0" value="97520">moderation</option> <option class="level-0" value="600911">preprints</option> <option class="level-0" value="600916">Scientific Advisory Board</option> <option class="level-0" value="1">Uncategorized</option> </select> </form><script type="text/javascript"> /* <![CDATA[ */ (function() { var dropdown = document.getElementById( "categories-dropdown-5" ); function onCatChange() { if ( dropdown.options[ dropdown.selectedIndex ].value > 0 ) { dropdown.parentNode.submit(); } } dropdown.onchange = onCatChange; })(); /* ]]> */ </script> </div><div id="search-4" class="sidebar-widget widget widget_search"> <form method="get" id="searchform" action="https://blog.arxiv.org/" role="search"> <label class="sr-only" for="searchform-s">Search</label> <div class="input-group"> <input class="field form-control" id="searchform-s" name="s" type="text" placeholder="Search..." value=""> <span class="input-group-append"> <button class="submit btn btn-primary" id="searchform-submit" type="submit"> <i aria-hidden="true" class="cps-icon cps-icon-search"></i> <span class="sr-only">Search Site</span> </button> </span> </div> </form> </div><div id="categories-3" class="sidebar-widget widget widget_categories"><h2 class="widget-title h h3">Categories</h2> <ul> <li class="cat-item cat-item-600913"><a href="https://blog.arxiv.org/category/about-arxiv/">about arXiv</a> (51) </li> <li class="cat-item cat-item-600934"><a href="https://blog.arxiv.org/category/arxiv-accessibility/">arXiv accessibility</a> (1) </li> <li class="cat-item cat-item-600909"><a href="https://blog.arxiv.org/category/arxiv-development/">arXiv development</a> (35) </li> <li class="cat-item cat-item-600927"><a href="https://blog.arxiv.org/category/arxiv-events/">arXiv events</a> (14) </li> <li class="cat-item cat-item-600929"><a href="https://blog.arxiv.org/category/arxiv-fundraising/">arXiv fundraising</a> (16) </li> <li class="cat-item cat-item-600910"><a href="https://blog.arxiv.org/category/arxiv-jobs/">arXiv jobs</a> (17) </li> <li class="cat-item cat-item-600930"><a href="https://blog.arxiv.org/category/arxiv-membership/">arXiv membership</a> (6) </li> <li class="cat-item cat-item-600905"><a href="https://blog.arxiv.org/category/arxiv-people/">arXiv people</a> (17) </li> <li class="cat-item cat-item-600914"><a href="https://blog.arxiv.org/category/arxiv-repository-news/">arXiv repository news</a> (15) </li> <li class="cat-item cat-item-600907"><a href="https://blog.arxiv.org/category/arxiv-support/">arXiv support</a> (17) </li> <li class="cat-item cat-item-600917"><a href="https://blog.arxiv.org/category/arxiv-updates/">arXiv updates</a> (73) </li> <li class="cat-item cat-item-600918"><a href="https://blog.arxiv.org/tag/arxiv-ux/">arXiv UX</a> (1) </li> <li class="cat-item cat-item-600906"><a href="https://blog.arxiv.org/category/arxiv-ng/">arXiv-NG</a> (24) </li> <li class="cat-item cat-item-600928"><a href="https://blog.arxiv.org/category/arxivlabs/">arXivLabs</a> (15) </li> <li class="cat-item cat-item-600931"><a href="https://blog.arxiv.org/category/governance/">Governance</a> (1) </li> <li class="cat-item cat-item-600915"><a href="https://blog.arxiv.org/category/member-advisory-board/">Member Advisory Board</a> (2) </li> <li class="cat-item cat-item-97520"><a href="https://blog.arxiv.org/category/moderation/">moderation</a> (8) </li> <li class="cat-item cat-item-600911"><a href="https://blog.arxiv.org/category/preprints/">preprints</a> (7) </li> <li class="cat-item cat-item-600916"><a href="https://blog.arxiv.org/category/scientific-advisory-board/">Scientific Advisory Board</a> (3) </li> <li class="cat-item cat-item-1"><a href="https://blog.arxiv.org/category/uncategorized/">Uncategorized</a> (4) </li> </ul> </div> <div id="recent-posts-3" class="sidebar-widget widget widget_recent_entries"> <h2 class="widget-title h h3">Recent Posts</h2> <ul> <li> <a href="https://blog.arxiv.org/2024/12/17/attention-arxiv-users-arxiv-privacy-policy-updated/">Attention arXiv users: arXiv privacy policy updated</a> <span class="post-date">December 17, 2024</span> </li> <li> <a href="https://blog.arxiv.org/2024/11/21/attention-authors-temporary-changes-to-announcement-schedule-due-to-end-of-year-holidays/">Attention Authors: Temporary changes to announcement schedule due to end-of-year holidays</a> <span class="post-date">November 21, 2024</span> </li> <li> <a href="https://blog.arxiv.org/2024/11/04/arxiv-sets-new-record-for-monthly-submissions-again/">arXiv sets new record for monthly submissions (again)!</a> <span class="post-date">November 4, 2024</span> </li> <li> <a href="https://blog.arxiv.org/2024/10/22/celebrate-open-access-week-with-arxiv/">Celebrate Open Access Week with arXiv!</a> <span class="post-date">October 22, 2024</span> </li> <li> <a href="https://blog.arxiv.org/2024/10/04/attention-authors-temporary-changes-to-announcement-schedule-due-to-staff-development/">Attention Authors: Temporary changes to announcement schedule due to staff development</a> <span class="post-date">October 4, 2024</span> </li> <li> <a href="https://blog.arxiv.org/2024/09/29/arxiv-has-been-set-to-read-only-while-we-investigate-a-db-replication-issue/">arXiv database issues have been resolved.</a> <span class="post-date">September 29, 2024</span> </li> <li> <a href="https://blog.arxiv.org/2024/09/13/attention-arxiv-users-arxiv-mirrors-to-shut-down-september-15th-2024/">Attention arXiv users: arXiv mirrors to shut down September 15th, 2024</a> <span class="post-date">September 13, 2024</span> </li> <li> <a href="https://blog.arxiv.org/2024/08/29/attention-authors-temporary-changes-to-announcement-schedule-due-to-labor-day-holiday/">Attention Authors: Temporary changes to announcement schedule due to Labor Day holiday</a> <span class="post-date">August 29, 2024</span> </li> </ul> </div><div id="custom_html-2" class="widget_text sidebar-widget widget widget_custom_html"><h2 class="widget-title h h3">More arXiv…</h2><div class="textwidget custom-html-widget"><a href="https://arxiv.org/">arXiv.org</a> || <a href="https://twitter.com/arxiv">@arXiv</a> || <a href="https://blogs.cornell.edu/arxiv/feed">Blog RSS</a></div></div> </div> </aside><!-- #right-sidebar --> </div><!-- .row --> </div><!-- #content --> </div><!-- #index-wrapper --> <footer class="wrapper has-background has-footer-main-bg-color-background-color" id="wrapper-footer"> <div id="footer-content"> <div class="container" id="footer-site-info"> <div class="row"> <div class="col-md-12"> <div class="site-footer" id="colophon"> <div class="site-info"> All content 漏 arXiv.org. Learn more <a href="https://info.arxiv.org/about/index.html" target="_blank">about arXiv</a>, or visit our <a href="https://info.arxiv.org/help/index.html" target="_blank">help pages</a>. </div><!-- .site-info --> </div><!-- #colophon --> </div><!--col end --> </div><!-- row end --> </div><!-- container end --> </div> <div id="footer-image-holder"> </div> </footer><!-- wrapper end --> </div><!-- #page we need this extra closing tag here --> <div id="modal-slide-in-menu" class="modal fade modal-slide-in-right modal-full-height nav-styling-underline" tabindex="-1" role="dialog" aria-label="slide-in menu" aria-hidden="true"> <div class="modal-dialog" role="document"> <div class="modal-content has-background has-header-main-bg-color-background-color"> <div class="modal-header"> <button type="button" class="close" data-dismiss="modal"> <i aria-hidden="true" class="cps-icon cps-icon-close"></i> <span class="sr-only">close menu</span> </button> </div> <div class="modal-body"> <nav class="menu-mobile" aria-label="Mobile" role="navigation"> <div class="menu-top-menu-container"><ul id="menu-main-mobile" class="nav flex-column"><li itemscope="itemscope" itemtype="https://www.schema.org/SiteNavigationElement" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-9 nav-item"><a class="nav-link" title="Blog Home" href="https://blogs.cornell.edu/arxiv/"><span class="menu-item-text">Blog Home</span></a></li> <li itemscope="itemscope" itemtype="https://www.schema.org/SiteNavigationElement" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-10 nav-item"><a class="nav-link" title="arXiv Home" target="_blank" rel="noopener noreferrer" href="https://arxiv.org/"><span class="menu-item-text">arXiv Home</span></a></li> <li itemscope="itemscope" itemtype="https://www.schema.org/SiteNavigationElement" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-11 nav-item"><a class="nav-link" title="About" target="_blank" rel="noopener noreferrer" href="https://info.arxiv.org/"><span class="menu-item-text">About</span></a></li> </ul></div> </nav> </div> </div> </div> </div><!-- #modal-slide-in-menu --> <div id="modal-search" class="modal fade modal-slide-in-top modal-close-inline modal-site-width modal-padding-lg" tabindex="-1" role="dialog" aria-label="search" aria-hidden="true"> <div class="modal-dialog site-width-max" role="document"> <div class="modal-content has-background has-header-main-bg-color-background-color"> <div class="modal-header pb-0"> <button type="button" class="close" data-dismiss="modal"> <i aria-hidden="true" class="cps-icon cps-icon-close"></i> <span class="sr-only">close search</span> </button> </div> <div class="modal-body"> <form method="get" id="searchform" action="https://blog.arxiv.org/" role="search"> <label class="sr-only" for="searchform-s">Search</label> <div class="input-group"> <input class="field form-control form-control-lg" id="searchform-s" name="s" type="text" placeholder="Search..." value=""> <span class="input-group-append"> <button class="submit btn btn-primary btn-lg" id="searchform-submit" type="submit"> <i aria-hidden="true" class="cps-icon cps-icon-search"></i> <span class="sr-only">Search Site</span> </button> </span> </div> </form> </div> </div> </div> </div><!-- #modal-search --> <div aria-hidden="true" role="dialog" tabindex="-1" aria-labelledby="sbe-follow-dialog-label" aria-describedby="sbe-follow-dialog-desc" id="sbe-follow" style="bottom:-1500px" class=""> <a aria-hidden="true" class="sbe-follow-link" href="#sbe-follow-wrap"><span>Subscribe</span></a> <div id="sbe-follow-wrap"> <button type="button" class="sbe-screen-reader-text sbe-follow-dialog-close-sr">Close</button> <h2 id="sbe-follow-dialog-label">Subscribe By Email</h2> <form action="" method="post" id="subscribe-by-email-button-form"> <p id="sbe-follow-dialog-desc">Get every new post delivered right to your inbox.</p> <p> <label class="sbe-screen-reader-text" for="sbe-follow-email">Your Email</label> <input type="email" name="email" id="sbe-follow-email" class="sbe-follow-email" placeholder="Your email" required/> <label aria-hidden="true" class="sbe-screen-reader-text" for="security-check">Leave this field blank</label> <input aria-hidden="true" type="text" class="screen-reader-text sbe-screen-reader-text" name="security-check" id="security-check" /> </p> <div class="sbe-recaptcha-holder"> <input name="g-recaptcha-response" type="hidden" class="g-recaptcha-response"> <p class="sbe-recaptcha-privacy"><small>This form is protected by reCAPTCHA and the Google <a href="https://policies.google.com/privacy" rel="nofollow">Privacy Policy</a> and <a href="https://policies.google.com/terms" rel="nofollow">Terms of Service</a> apply.</small></p> </div> <input type="hidden" name="sbe-blog-id" value="7752" /> <input type="hidden" name="action" value="sbe-subscribe" /> <input type="hidden" id="_wpnonce" name="_wpnonce" value="57f8d15b0a" /><input type="hidden" name="_wp_http_referer" value="/" /> <p><input type="submit" value="Subscribe me!" /></p> </form> </div> </div> <link rel='stylesheet' id='follow-button-styles-css' href='https://blog.arxiv.org/wp-content/plugins/subscribe-by-email/subscribe-by-email/assets//css/follow-button.css?ver=3' type='text/css' media='all' /> <script type="text/javascript" src="https://blog.arxiv.org/wp-includes/js/hoverintent-js.min.js?ver=2.2.1" id="hoverintent-js-js"></script> <script type="text/javascript" src="https://blog.arxiv.org/wp-includes/js/admin-bar.min.js?ver=6.5.5" id="admin-bar-js"></script> <script type="text/javascript" id="blog_templates_front-js-extra"> /* <![CDATA[ */ var blog_templates_params = {"type":"0"}; /* ]]> */ </script> <script type="text/javascript" src="https://blog.arxiv.org/wp-content/plugins/blogtemplates//blogtemplatesfiles/assets/js/front.js?ver=2.6.8.2" id="blog_templates_front-js"></script> <script type="text/javascript" src="https://blog.arxiv.org/wp-content/themes/cpschool/js/aos.js?ver=0.9.10.1582726456" id="aos-js"></script> <script type="text/javascript" id="cpschool-scripts-js-extra"> /* <![CDATA[ */ var cpSchoolData = {"parallaxHeader":"","animations":"1"}; /* ]]> */ </script> <script type="text/javascript" src="https://blog.arxiv.org/wp-content/themes/cpschool/js/theme.min.js?ver=0.9.10.1733816540" id="cpschool-scripts-js"></script> <script type="text/javascript" src="https://www.google.com/recaptcha/api.js?render=6LcKWpMqAAAAADTyBqGX3o17a4B3BCh9p-UtYalS&ver=6.5.5" id="google-recaptcha-cp-v3-js"></script> <script type="text/javascript" id="follow-button-scripts-js-extra"> /* <![CDATA[ */ var sbe_button = {"recaptcha_v3_site_key":"6LcKWpMqAAAAADTyBqGX3o17a4B3BCh9p-UtYalS"}; /* ]]> */ </script> <script type="text/javascript" src="https://blog.arxiv.org/wp-content/plugins/subscribe-by-email/subscribe-by-email/assets//js/follow-button.js?ver=4" id="follow-button-scripts-js"></script> </body> </html>