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L2 - Wikipedia

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href="/w/index.php?title=%E7%89%B9%E5%88%A5:%E3%83%AD%E3%82%B0%E3%82%A4%E3%83%B3&amp;returnto=L2" title="ログインすることを推奨します。ただし、必須ではありません。 [o]" accesskey="o"><span class="vector-icon mw-ui-icon-logIn mw-ui-icon-wikimedia-logIn"></span> <span>ログイン</span></a></li> </ul> </div> </div> <div id="p-user-menu-anon-editor" class="vector-menu mw-portlet mw-portlet-user-menu-anon-editor" > <div class="vector-menu-heading"> ログアウトした編集者のページ <a href="/wiki/Wikipedia:%E3%82%A6%E3%82%A3%E3%82%AD%E3%83%9A%E3%83%87%E3%82%A3%E3%82%A2%E3%81%B8%E3%82%88%E3%81%86%E3%81%93%E3%81%9D" aria-label="編集の詳細"><span>もっと詳しく</span></a> </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-anoncontribs" class="mw-list-item"><a href="/wiki/%E7%89%B9%E5%88%A5:%E8%87%AA%E5%88%86%E3%81%AE%E6%8A%95%E7%A8%BF%E8%A8%98%E9%8C%B2" title="このIPアドレスからなされた編集の一覧 [y]" accesskey="y"><span>投稿記録</span></a></li><li id="pt-anontalk" class="mw-list-item"><a href="/wiki/%E7%89%B9%E5%88%A5:%E3%83%88%E3%83%BC%E3%82%AF%E3%83%9A%E3%83%BC%E3%82%B8" title="このIPアドレスからなされた編集についての議論 [n]" accesskey="n"><span>トーク</span></a></li> </ul> </div> </div> </div> </div> </nav> </div> </header> </div> <div class="mw-page-container"> <div class="mw-page-container-inner"> <div class="vector-sitenotice-container"> <div id="siteNotice"><!-- CentralNotice --></div> </div> <div class="vector-column-start"> <div class="vector-main-menu-container"> <div id="mw-navigation"> <nav id="mw-panel" class="vector-main-menu-landmark" aria-label="サイト"> <div id="vector-main-menu-pinned-container" class="vector-pinned-container"> </div> </nav> </div> </div> <div class="vector-sticky-pinned-container"> <nav id="mw-panel-toc" aria-label="目次" data-event-name="ui.sidebar-toc" class="mw-table-of-contents-container vector-toc-landmark"> <div id="vector-toc-pinned-container" class="vector-pinned-container"> <div id="vector-toc" class="vector-toc vector-pinnable-element"> <div class="vector-pinnable-header vector-toc-pinnable-header vector-pinnable-header-pinned" data-feature-name="toc-pinned" data-pinnable-element-id="vector-toc" > <h2 class="vector-pinnable-header-label">目次</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">サイドバーに移動</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">非表示</button> </div> <ul class="vector-toc-contents" id="mw-panel-toc-list"> <li id="toc-mw-content-text" class="vector-toc-list-item vector-toc-level-1"> <a href="#" class="vector-toc-link"> <div class="vector-toc-text">ページ先頭</div> </a> </li> <li id="toc-関連項目" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#関連項目"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>関連項目</span> </div> </a> <ul id="toc-関連項目-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="目次" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="目次の表示・非表示を切り替え" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">目次の表示・非表示を切り替え</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">L2</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="特定の記事の別の言語版に移動します。 利用可能な言語15件" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-15" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">15の言語版</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/L2" title="カタロニア語: L2" lang="ca" hreflang="ca" data-title="L2" data-language-autonym="Català" data-language-local-name="カタロニア語" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/L2" title="チェコ語: L2" lang="cs" hreflang="cs" data-title="L2" data-language-autonym="Čeština" data-language-local-name="チェコ語" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/L2" title="ドイツ語: L2" lang="de" hreflang="de" data-title="L2" data-language-autonym="Deutsch" data-language-local-name="ドイツ語" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/L2" title="英語: L2" lang="en" hreflang="en" data-title="L2" data-language-autonym="English" data-language-local-name="英語" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/L2" title="スペイン語: L2" lang="es" hreflang="es" data-title="L2" data-language-autonym="Español" data-language-local-name="スペイン語" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/L2" title="フィンランド語: L2" lang="fi" hreflang="fi" data-title="L2" data-language-autonym="Suomi" data-language-local-name="フィンランド語" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/L2" title="フランス語: L2" lang="fr" hreflang="fr" data-title="L2" data-language-autonym="Français" data-language-local-name="フランス語" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/L2_(disambigua)" title="イタリア語: L2 (disambigua)" lang="it" hreflang="it" data-title="L2 (disambigua)" data-language-autonym="Italiano" data-language-local-name="イタリア語" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/L2" title="韓国語: L2" lang="ko" hreflang="ko" data-title="L2" data-language-autonym="한국어" data-language-local-name="韓国語" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://lv.wikipedia.org/wiki/L2" title="ラトビア語: L2" lang="lv" hreflang="lv" data-title="L2" data-language-autonym="Latviešu" data-language-local-name="ラトビア語" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/L2" title="オランダ語: L2" lang="nl" hreflang="nl" data-title="L2" data-language-autonym="Nederlands" data-language-local-name="オランダ語" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/L2" title="ポルトガル語: L2" lang="pt" hreflang="pt" data-title="L2" data-language-autonym="Português" data-language-local-name="ポルトガル語" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/L2" title="ロシア語: L2" lang="ru" hreflang="ru" data-title="L2" data-language-autonym="Русский" data-language-local-name="ロシア語" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/L2" title="スウェーデン語: L2" lang="sv" hreflang="sv" data-title="L2" data-language-autonym="Svenska" data-language-local-name="スウェーデン語" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/L2" title="中国語: L2" lang="zh" hreflang="zh" data-title="L2" data-language-autonym="中文" data-language-local-name="中国語" class="interlanguage-link-target"><span>中文</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q248433#sitelinks-wikipedia" title="言語間リンクを編集" class="wbc-editpage">リンクを編集</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="名前空間"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-nstab-main" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/L2" title="本文を閲覧 [c]" accesskey="c"><span>ページ</span></a></li><li id="ca-talk" class="new vector-tab-noicon mw-list-item"><a href="/w/index.php?title=%E3%83%8E%E3%83%BC%E3%83%88:L2&amp;action=edit&amp;redlink=1" rel="discussion" class="new" title="「本文ページについての議論」 (存在しないページ) [t]" accesskey="t"><span>ノート</span></a></li> </ul> </div> </div> <div id="vector-variants-dropdown" class="vector-dropdown emptyPortlet" > <input type="checkbox" id="vector-variants-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-variants-dropdown" class="vector-dropdown-checkbox " aria-label="別の言語に切り替える" > <label id="vector-variants-dropdown-label" for="vector-variants-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">日本語</span> </label> <div class="vector-dropdown-content"> <div id="p-variants" class="vector-menu mw-portlet mw-portlet-variants emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> </div> </div> </nav> </div> <div id="right-navigation" class="vector-collapsible"> <nav aria-label="表示"> <div id="p-views" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-views" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-view" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/L2"><span>閲覧</span></a></li><li id="ca-edit" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=L2&amp;action=edit" title="このページのソースコードを編集する [e]" accesskey="e"><span>編集</span></a></li><li id="ca-history" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=L2&amp;action=history" title="このページの過去の版 [h]" accesskey="h"><span>履歴表示</span></a></li> </ul> </div> </div> </nav> <nav class="vector-page-tools-landmark" aria-label="ページツール"> <div id="vector-page-tools-dropdown" class="vector-dropdown vector-page-tools-dropdown" > <input type="checkbox" id="vector-page-tools-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-tools-dropdown" class="vector-dropdown-checkbox " aria-label="ツール" > <label id="vector-page-tools-dropdown-label" for="vector-page-tools-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">ツール</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-tools-unpinned-container" class="vector-unpinned-container"> <div id="vector-page-tools" class="vector-page-tools vector-pinnable-element"> <div class="vector-pinnable-header vector-page-tools-pinnable-header vector-pinnable-header-unpinned" data-feature-name="page-tools-pinned" data-pinnable-element-id="vector-page-tools" data-pinned-container-id="vector-page-tools-pinned-container" data-unpinned-container-id="vector-page-tools-unpinned-container" > <div class="vector-pinnable-header-label">ツール</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-page-tools.pin">サイドバーに移動</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-page-tools.unpin">非表示</button> </div> <div id="p-cactions" class="vector-menu mw-portlet mw-portlet-cactions emptyPortlet vector-has-collapsible-items" title="その他の操作" > <div class="vector-menu-heading"> 操作 </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-more-view" class="selected vector-more-collapsible-item mw-list-item"><a href="/wiki/L2"><span>閲覧</span></a></li><li id="ca-more-edit" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=L2&amp;action=edit" title="このページのソースコードを編集する [e]" accesskey="e"><span>編集</span></a></li><li id="ca-more-history" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=L2&amp;action=history"><span>履歴表示</span></a></li> </ul> </div> </div> <div id="p-tb" class="vector-menu mw-portlet mw-portlet-tb" > <div class="vector-menu-heading"> 全般 </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-whatlinkshere" class="mw-list-item"><a href="/wiki/%E7%89%B9%E5%88%A5:%E3%83%AA%E3%83%B3%E3%82%AF%E5%85%83/L2" title="ここにリンクしている全ウィキページの一覧 [j]" accesskey="j"><span>リンク元</span></a></li><li id="t-recentchangeslinked" class="mw-list-item"><a href="/wiki/%E7%89%B9%E5%88%A5:%E9%96%A2%E9%80%A3%E3%83%9A%E3%83%BC%E3%82%B8%E3%81%AE%E6%9B%B4%E6%96%B0%E7%8A%B6%E6%B3%81/L2" rel="nofollow" title="このページからリンクしているページの最近の更新 [k]" accesskey="k"><span>関連ページの更新状況</span></a></li><li id="t-upload" class="mw-list-item"><a href="/wiki/Wikipedia:%E3%83%95%E3%82%A1%E3%82%A4%E3%83%AB%E3%81%AE%E3%82%A2%E3%83%83%E3%83%97%E3%83%AD%E3%83%BC%E3%83%89" title="ファイルをアップロードする [u]" accesskey="u"><span>ファイルをアップロード</span></a></li><li id="t-specialpages" class="mw-list-item"><a href="/wiki/%E7%89%B9%E5%88%A5:%E7%89%B9%E5%88%A5%E3%83%9A%E3%83%BC%E3%82%B8%E4%B8%80%E8%A6%A7" title="特別ページの一覧 [q]" accesskey="q"><span>特別ページ</span></a></li><li id="t-permalink" class="mw-list-item"><a href="/w/index.php?title=L2&amp;oldid=100325999" title="このページのこの版への固定リンク"><span>この版への固定リンク</span></a></li><li id="t-info" class="mw-list-item"><a href="/w/index.php?title=L2&amp;action=info" title="このページについての詳細情報"><span>ページ情報</span></a></li><li id="t-cite" class="mw-list-item"><a href="/w/index.php?title=%E7%89%B9%E5%88%A5:%E3%81%93%E3%81%AE%E3%83%9A%E3%83%BC%E3%82%B8%E3%82%92%E5%BC%95%E7%94%A8&amp;page=L2&amp;id=100325999&amp;wpFormIdentifier=titleform" title="このページの引用方法"><span>このページを引用</span></a></li><li id="t-urlshortener" class="mw-list-item"><a href="/w/index.php?title=%E7%89%B9%E5%88%A5:UrlShortener&amp;url=https%3A%2F%2Fja.wikipedia.org%2Fwiki%2FL2"><span>短縮URLを取得する</span></a></li><li id="t-urlshortener-qrcode" class="mw-list-item"><a href="/w/index.php?title=%E7%89%B9%E5%88%A5:QrCode&amp;url=https%3A%2F%2Fja.wikipedia.org%2Fwiki%2FL2"><span>QRコードをダウンロード</span></a></li> </ul> </div> </div> <div id="p-coll-print_export" class="vector-menu mw-portlet mw-portlet-coll-print_export" > <div class="vector-menu-heading"> 印刷/書き出し </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="coll-create_a_book" class="mw-list-item"><a href="/w/index.php?title=%E7%89%B9%E5%88%A5:%E3%83%96%E3%83%83%E3%82%AF&amp;bookcmd=book_creator&amp;referer=L2"><span>ブックの新規作成</span></a></li><li id="coll-download-as-rl" class="mw-list-item"><a href="/w/index.php?title=%E7%89%B9%E5%88%A5:DownloadAsPdf&amp;page=L2&amp;action=show-download-screen"><span>PDF 形式でダウンロード</span></a></li><li id="t-print" class="mw-list-item"><a href="/w/index.php?title=L2&amp;printable=yes" title="このページの印刷用ページ [p]" accesskey="p"><span>印刷用バージョン</span></a></li> </ul> </div> </div> <div id="p-wikibase-otherprojects" class="vector-menu mw-portlet mw-portlet-wikibase-otherprojects" > <div class="vector-menu-heading"> 他のプロジェクト </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-wikibase" class="wb-otherproject-link wb-otherproject-wikibase-dataitem mw-list-item"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q248433" title="関連付けられたデータリポジトリ項目へのリンク [g]" accesskey="g"><span>ウィキデータ項目</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> </div> </div> </div> <div class="vector-column-end"> <div class="vector-sticky-pinned-container"> <nav class="vector-page-tools-landmark" aria-label="ページツール"> <div id="vector-page-tools-pinned-container" class="vector-pinned-container"> </div> </nav> <nav class="vector-appearance-landmark" aria-label="表示"> <div id="vector-appearance-pinned-container" class="vector-pinned-container"> <div id="vector-appearance" class="vector-appearance vector-pinnable-element"> <div class="vector-pinnable-header vector-appearance-pinnable-header vector-pinnable-header-pinned" data-feature-name="appearance-pinned" data-pinnable-element-id="vector-appearance" data-pinned-container-id="vector-appearance-pinned-container" data-unpinned-container-id="vector-appearance-unpinned-container" > <div class="vector-pinnable-header-label">表示</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">サイドバーに移動</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">非表示</button> </div> </div> </div> </nav> </div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">出典: フリー百科事典『ウィキペディア(Wikipedia)』</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="ja" dir="ltr"><p><b>L2</b>、<b>L-2</b>、<b>L02</b>、<b>L-02</b> </p> <ul><li><a href="/wiki/%E3%83%A9%E3%82%B0%E3%83%A9%E3%83%B3%E3%82%B8%E3%83%A5%E7%82%B9" title="ラグランジュ点">ラグランジュ点</a>直線解の1つ。</li> <li><a href="/wiki/Lp%E7%A9%BA%E9%96%93" title="Lp空間">L<sup>2</sup>空間</a> - <a href="/wiki/%E8%87%AA%E4%B9%97%E5%8F%AF%E7%A9%8D%E5%88%86%E5%87%BD%E6%95%B0" title="自乗可積分函数">2乗可積分関数</a>の集合。</li> <li><a href="/wiki/Lp%E3%83%8E%E3%83%AB%E3%83%A0" class="mw-redirect" title="Lpノルム">L<sup>2</sup>ノルム</a></li> <li><a href="/wiki/%E6%95%B0%E5%88%97%E7%A9%BA%E9%96%93" title="数列空間">ℓ<sup>2</sup>空間</a></li> <li><span title="リンク先の項目はまだありません。新規の執筆や他言語版からの翻訳が望まれます。"><a href="/w/index.php?title=L2%E3%82%B3%E3%83%9B%E3%83%A2%E3%83%AD%E3%82%B8%E3%83%BC&amp;action=edit&amp;redlink=1" class="new" title="「L2コホモロジー」 (存在しないページ)">L<sup>2</sup>コホモロジー</a><span style="font-size: 0.77em; font-weight: normal;" class="noprint">(<a href="https://en.wikipedia.org/wiki/L2_cohomology" class="extiw" title="en:L2 cohomology">英語版</a>)</span></span></li> <li><a href="/wiki/L2%E3%82%AD%E3%83%A3%E3%83%83%E3%82%B7%E3%83%A5" title="L2キャッシュ">L2キャッシュ</a> - <a href="/wiki/CPU%E3%82%AD%E3%83%A3%E3%83%83%E3%82%B7%E3%83%A5" class="mw-redirect" title="CPUキャッシュ">CPUキャッシュ</a>の第2段。</li> <li><a href="/wiki/%E9%9A%8E%E5%B1%A4%E6%A7%8B%E9%80%A0" title="階層構造">階層モデル</a>の第2層 (<span lang="en">layer 2</span>)。<a href="/wiki/OSI%E5%8F%82%E7%85%A7%E3%83%A2%E3%83%87%E3%83%AB" title="OSI参照モデル">OSI参照モデル</a>では<a href="/wiki/%E3%83%87%E3%83%BC%E3%82%BF%E3%83%AA%E3%83%B3%E3%82%AF%E5%B1%A4" title="データリンク層">データリンク層</a>。</li> <li><a href="/wiki/%E7%AC%AC%E4%BA%8C%E8%A8%80%E8%AA%9E" title="第二言語">第二言語</a> (<span lang="en">language 2</span>)。</li> <li><a href="/wiki/%E7%9B%B4%E5%88%972%E6%B0%97%E7%AD%92" title="直列2気筒">直列2気筒</a>エンジン。</li> <li><a href="/wiki/%E6%97%A5%E6%9C%AC%E5%A5%B3%E5%AD%90%E3%82%B5%E3%83%83%E3%82%AB%E3%83%BC%E3%83%AA%E3%83%BC%E3%82%B0" title="日本女子サッカーリーグ">日本女子サッカーリーグ</a>の2部リーグ。</li> <li><a href="/wiki/%E3%83%AA%E3%83%BC%E3%82%B0%E3%83%BB%E3%83%89%E3%82%A5" title="リーグ・ドゥ">リーグ・ドゥ</a> - フランスのサッカー2部リーグ</li> <li><a href="/wiki/L2_Love%C3%97Loop" title="L2 Love×Loop">L2 Love×Loop</a> - コンピュータゲーム。</li> <li><a href="/wiki/%E3%83%A9%E3%83%A0%E3%83%80%E3%83%AD%E3%82%B1%E3%83%83%E3%83%88" title="ラムダロケット">ラムダロケット</a>の派生バージョン。</li> <li><a href="/wiki/L%E7%B4%9A%E8%BB%9F%E5%BC%8F%E9%A3%9B%E8%A1%8C%E8%88%B9" title="L級軟式飛行船">L級軟式飛行船</a>の2番機。</li> <li><a href="/wiki/%E3%82%AD%E3%83%A3%E3%83%B3%E3%83%99%E3%83%A9%E7%B4%9A%E5%BC%B7%E8%A5%B2%E6%8F%9A%E9%99%B8%E8%89%A6" title="キャンベラ級強襲揚陸艦">キャンベラ級強襲揚陸艦</a><span title="リンク先の項目はまだありません。新規の執筆や他言語版からの翻訳が望まれます。"><a href="/w/index.php?title=%E3%82%AD%E3%83%A3%E3%83%B3%E3%83%99%E3%83%A9_(%E5%BC%B7%E8%A5%B2%E6%8F%9A%E9%99%B8%E8%89%A6)&amp;action=edit&amp;redlink=1" class="new" title="「キャンベラ (強襲揚陸艦)」 (存在しないページ)">キャンベラ (強襲揚陸艦)</a><span style="font-size: 0.77em; font-weight: normal;" class="noprint">(<a href="https://en.wikipedia.org/wiki/HMAS_Canberra_(L02)" class="extiw" title="en:HMAS Canberra (L02)">英語版</a>)</span></span>のペナントナンバー</li> <li>潜水艦 <ul><li><a href="/wiki/L-2_(%E6%BD%9C%E6%B0%B4%E8%89%A6)" title="L-2 (潜水艦)">L-2 (潜水艦)</a> - <a href="/wiki/L%E7%B4%9A%E6%BD%9C%E6%B0%B4%E8%89%A6_(%E3%82%A2%E3%83%A1%E3%83%AA%E3%82%AB%E6%B5%B7%E8%BB%8D)" title="L級潜水艦 (アメリカ海軍)">L級潜水艦 (アメリカ海軍)</a> の2番艦。</li> <li><a href="/wiki/L%E7%B4%9A%E6%BD%9C%E6%B0%B4%E8%89%A6_(%E3%82%A4%E3%82%AE%E3%83%AA%E3%82%B9%E6%B5%B7%E8%BB%8D)" title="L級潜水艦 (イギリス海軍)">L級潜水艦 (イギリス海軍)</a> の2番艦<span title="リンク先の項目はまだありません。新規の執筆や他言語版からの翻訳が望まれます。"><a href="/w/index.php?title=L2_(%E6%BD%9C%E6%B0%B4%E8%89%A6)&amp;action=edit&amp;redlink=1" class="new" title="「L2 (潜水艦)」 (存在しないページ)">L2 (潜水艦)</a><span style="font-size: 0.77em; font-weight: normal;" class="noprint">(<a href="https://en.wikipedia.org/wiki/HMS_L2" class="extiw" title="en:HMS L2">英語版</a>)</span></span>。</li> <li><a href="/wiki/L%E5%9E%8B%E6%BD%9C%E6%B0%B4%E8%89%A6" title="L型潜水艦">L型潜水艦</a> (ソ連) の2番艦<span title="リンク先の項目はまだありません。新規の執筆や他言語版からの翻訳が望まれます。"><a href="/w/index.php?title=%E3%82%B9%E3%82%BF%E3%83%AA%E3%83%8D%E3%83%83%E3%83%84_(%E6%BD%9C%E6%B0%B4%E8%89%A6)&amp;action=edit&amp;redlink=1" class="new" title="「スタリネッツ (潜水艦)」 (存在しないページ)">スタリネッツ (潜水艦)</a><span style="font-size: 0.77em; font-weight: normal;" class="noprint">(<a href="https://ru.wikipedia.org/wiki/%D0%9B-2" class="extiw" title="ru:Л-2">ロシア語版</a>)</span></span>。</li></ul></li> <li><a href="/wiki/SIMPURE_L2" title="SIMPURE L2">SIMPURE L2</a> - <a href="/wiki/DoCoMo" class="mw-redirect" title="DoCoMo">DoCoMo</a>用携帯端末。</li> <li>L-2フライトジャケット - <a href="/wiki/%E3%83%8A%E3%82%A4%E3%83%AD%E3%83%B3" title="ナイロン">ナイロン</a>製の<a href="/wiki/%E3%83%95%E3%83%A9%E3%82%A4%E3%83%88%E3%82%B8%E3%83%A3%E3%82%B1%E3%83%83%E3%83%88" title="フライトジャケット">フライトジャケット</a>。</li> <li><a href="/wiki/%E3%83%AA%E3%83%B3%E3%83%87%E3%83%B3%E3%83%BB%E3%82%A8%E3%82%A2%E3%82%AB%E3%83%BC%E3%82%B4" title="リンデン・エアカーゴ">リンデン・エアカーゴ</a>のIATA航空会社コード</li> <li><a href="/wiki/%E3%81%AF%E3%81%AA%E3%81%BF%E3%81%9A%E3%81%8D%E9%80%9A%E9%A7%85" title="はなみずき通駅">はなみずき通駅</a>の駅番号</li> <li><a href="/wiki/URBANO_L02" title="URBANO L02">URBANO L02</a> - <a href="/wiki/URBANO%E3%82%B7%E3%83%AA%E3%83%BC%E3%82%BA" title="URBANOシリーズ">URBANOシリーズ</a>の<a href="/wiki/%E3%82%B9%E3%83%9E%E3%83%BC%E3%83%88%E3%83%95%E3%82%A9%E3%83%B3" title="スマートフォン">スマートフォン</a></li> <li><a href="/w/index.php?title=%E5%86%85%E5%88%86%E6%B3%8C%E7%99%82%E6%B3%95&amp;action=edit&amp;redlink=1" class="new" title="「内分泌療法」 (存在しないページ)">内分泌療法</a>を指す<a href="/wiki/%E8%A7%A3%E5%89%96%E6%B2%BB%E7%99%82%E5%8C%96%E5%AD%A6%E5%88%86%E9%A1%9E%E6%B3%95" title="解剖治療化学分類法">解剖治療化学分類法</a>のコード</li></ul> <div class="mw-heading mw-heading2"><h2 id="関連項目"><span id=".E9.96.A2.E9.80.A3.E9.A0.85.E7.9B.AE"></span>関連項目</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=L2&amp;action=edit&amp;section=1" title="節を編集: 関連項目"><span>編集</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/L0" class="mw-disambig" title="L0">L0</a> - <a href="/wiki/L1" class="mw-disambig" title="L1">L1</a> - <b>L2</b> - <a href="/wiki/L3_(%E6%9B%96%E6%98%A7%E3%81%95%E5%9B%9E%E9%81%BF)" class="mw-disambig" title="L3 (曖昧さ回避)">L3</a> - <a href="/wiki/L4" class="mw-disambig" title="L4">L4</a> - <a href="/wiki/L5" class="mw-disambig" title="L5">L5</a> - <a href="/wiki/L6" class="mw-disambig" title="L6">L6</a> - <a href="/wiki/L7" class="mw-disambig" title="L7">L7</a> - <a href="/wiki/L8" class="mw-disambig" title="L8">L8</a> - <a href="/wiki/L9" class="mw-disambig" title="L9">L9</a> - <a href="/wiki/L10" class="mw-disambig" title="L10">L10</a></li> <li><a href="/wiki/%E7%89%B9%E5%88%A5:%E5%89%8D%E6%96%B9%E4%B8%80%E8%87%B4%E3%83%9A%E3%83%BC%E3%82%B8%E4%B8%80%E8%A6%A7/L2" title="特別:前方一致ページ一覧/L2">「L2」で始まるページの一覧</a></li> <li><span class="selfreference"><a href="/wiki/%E7%89%B9%E5%88%A5:%E6%A4%9C%E7%B4%A2/intitle:L2" title="特別:検索/intitle:L2">タイトルに「L2」を含むページの一覧</a></span></li></ul> <style data-mw-deduplicate="TemplateStyles:r85404935">.mw-parser-output .dmbox{display:flex;align-items:center;clear:both;margin:0.9em 1em;border-top:1px solid #ccc;border-bottom:1px solid #ccc;padding:0.25em 0.35em;font-size:95%}.mw-parser-output .dmbox>*{flex-shrink:0;margin:0 0.25em;display:inline}.mw-parser-output .dmbox-body{flex-grow:1;flex-shrink:1;padding:0.1em 0}</style> <div role="note" id="disambigbox" class="metadata plainlinks dmbox dmbox-disambig"><span typeof="mw:File"><a href="/wiki/%E3%83%95%E3%82%A1%E3%82%A4%E3%83%AB:Disambig_gray.svg" class="mw-file-description"><img alt="曖昧さ回避のアイコン" src="//upload.wikimedia.org/wikipedia/commons/thumb/5/5f/Disambig_gray.svg/30px-Disambig_gray.svg.png" decoding="async" width="30" height="23" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/5f/Disambig_gray.svg/45px-Disambig_gray.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/5f/Disambig_gray.svg/60px-Disambig_gray.svg.png 2x" data-file-width="220" data-file-height="168" /></a></span><div class="dmbox-body">このページは<b><a href="/wiki/Wikipedia:%E6%9B%96%E6%98%A7%E3%81%95%E5%9B%9E%E9%81%BF" 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