Classification Search

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</div> <div class="special"> <ul class="nav help-button"> <li class="dropdown pull-right"> <a href="#">Help <i class="caret"></i></a> </li> </ul> </div> </span> </div> <div class="help"><h2>Examples</h2> <div id="help-terms" role="table"> <div class="help-item" role="row"> <span class="search-example" role="rowheader"><a href="/classification/?q=Geometry">Geometry</a></span> <span class="search-explanation" role="cell" role="cell">Search for the term <em>Geometry</em> in <strong>any</strong> field. Queries are <strong>case - independent</strong>.</span> </div> </div> <p style="margin-bottom:0.5cm;"></p> <h2>Fields</h2> <div id="help-fields" role="table"> <div class="help-item" role="row"> <span class="search-fields" role="rowheader"> <strong>cc</strong> </span> <span class="search-explanation" role="cell" role="cell"> MSC code (use first two, first three or all five MSC digits; MSC2020 only) </span> </div> <div class="help-item" role="row"> <span class="search-fields" role="rowheader"> <strong>ct</strong> </span> <span class="search-explanation" role="cell" role="cell"> Text from the description </span> </div> </div> <p style="margin-bottom:0.5cm;"></p> <h2>Operators</h2> <div id="operators-fields" role="table"> <div class="help-item" role="row"> <span class="search-fields" role="rowheader"><strong>a & b</strong></span> <span class="search-explanation" role="cell" role="cell">logical and</span> </div> <div class="help-item" role="row"> <span class="search-fields" role="rowheader"><strong>a | b</strong></span> <span class="search-explanation" role="cell" role="cell">logical or</span> </div> <div class="help-item" role="row"> <span class="search-fields" role="rowheader"><strong>!ab</strong></span> <span class="search-explanation" role="cell" role="cell">logical not</span> </div> <div class="help-item" role="row"> <span class="search-fields" role="rowheader"><strong>abc*</strong></span> <span class="search-explanation" role="cell" role="cell">right wildcard</span> </div> <div class="help-item" role="row"> <span class="search-fields" role="rowheader"><strong>ab c</strong></span> <span class="search-explanation" role="cell" role="cell">phrase</span> </div> <div class="help-item" role="row"> <span class="search-fields" role="rowheader"><strong>(ab c)</strong></span> <span class="search-explanation" role="cell" role="cell">parentheses</span> </div> </div> <p> See also our <a href="/general-help/">General Help</a>. </p></div> </div> </form> </div> </div> </div> <div id="body"> <div id="main" class="start"> <div class="messages"> </div> <div id="classification"> <div class="content-main"> <div class="head"> <h2>Mathematics Subject Classification – MSC2020</h2> <p> MSC2020 is the latest revision of the Mathematics Subject Classification (MSC), jointly published by Mathematical Reviews and zbMATH Open under a Creative Commons CC-BY-NC-SA license. It replaces the 2010 Mathematics Subject Classification. For details on the revision, read more in the article <a href="https://doi.org/10.4171/NEWS/115/2">https://doi.org/10.4171/NEWS/115/2</a>. </p> <p> The final version is also available as a complete <a href="/static/msc2020.pdf">msc2020.pdf</a> file. </p> </div> <div class="left"> <div class="item"> <article> <div class="code"> <a class="mono" href="/classification/?q=cc%3A00">00</a> </div> <div class="half"> <a href="/classification/?q=cc%3A00">General and overarching topics; collections</a> <a target="_blank" href="/atom/cc/00"><img class="feed-icon" alt="Recent zbMATH articles in MSC 00" src="/static/feed-icon-12x12.png"></a></div> </article> </div> <div class="item"> <article> <div class="code"> <a class="mono" href="/classification/?q=cc%3A01">01</a> </div> <div class="half"> <a href="/classification/?q=cc%3A01">History and biography</a> <a target="_blank" href="/atom/cc/01"><img class="feed-icon" alt="Recent zbMATH articles in MSC 01" src="/static/feed-icon-12x12.png"></a></div> </article> </div> <div class="item"> <article> <div class="code"> <a class="mono" href="/classification/?q=cc%3A03">03</a> </div> <div class="half"> <a href="/classification/?q=cc%3A03">Mathematical logic and foundations</a> <a target="_blank" href="/atom/cc/03"><img class="feed-icon" alt="Recent zbMATH articles in MSC 03" src="/static/feed-icon-12x12.png"></a></div> </article> </div> <div class="item"> <article> <div class="code"> <a class="mono" href="/classification/?q=cc%3A05">05</a> </div> <div class="half"> <a href="/classification/?q=cc%3A05">Combinatorics</a> <a target="_blank" href="/atom/cc/05"><img class="feed-icon" alt="Recent zbMATH articles in MSC 05" src="/static/feed-icon-12x12.png"></a></div> </article> </div> <div class="item"> <article> <div class="code"> <a class="mono" href="/classification/?q=cc%3A06">06</a> </div> <div class="half"> <a href="/classification/?q=cc%3A06">Order, lattices, ordered algebraic structures</a> <a target="_blank" href="/atom/cc/06"><img class="feed-icon" alt="Recent zbMATH articles in MSC 06" src="/static/feed-icon-12x12.png"></a></div> </article> </div> <div class="item"> <article> <div class="code"> <a class="mono" href="/classification/?q=cc%3A08">08</a> </div> <div class="half"> <a href="/classification/?q=cc%3A08">General algebraic systems</a> <a target="_blank" href="/atom/cc/08"><img class="feed-icon" alt="Recent zbMATH articles in MSC 08" src="/static/feed-icon-12x12.png"></a></div> </article> </div> <div class="item"> <article> <div class="code"> <a class="mono" href="/classification/?q=cc%3A11">11</a> </div> <div class="half"> <a href="/classification/?q=cc%3A11">Number theory</a> <a target="_blank" href="/atom/cc/11"><img class="feed-icon" alt="Recent zbMATH articles in MSC 11" src="/static/feed-icon-12x12.png"></a></div> </article> </div> <div class="item"> <article> <div class="code"> <a class="mono" href="/classification/?q=cc%3A12">12</a> </div> <div class="half"> <a href="/classification/?q=cc%3A12">Field theory and polynomials</a> <a target="_blank" href="/atom/cc/12"><img class="feed-icon" alt="Recent zbMATH articles in MSC 12" src="/static/feed-icon-12x12.png"></a></div> </article> </div> <div class="item"> <article> <div class="code"> <a class="mono" href="/classification/?q=cc%3A13">13</a> </div> <div class="half"> <a href="/classification/?q=cc%3A13">Commutative algebra</a> <a target="_blank" href="/atom/cc/13"><img class="feed-icon" alt="Recent zbMATH articles in MSC 13" src="/static/feed-icon-12x12.png"></a></div> </article> </div> <div class="item"> <article> <div class="code"> <a class="mono" href="/classification/?q=cc%3A14">14</a> </div> <div class="half"> <a href="/classification/?q=cc%3A14">Algebraic geometry</a> <a target="_blank" href="/atom/cc/14"><img class="feed-icon" alt="Recent zbMATH articles in MSC 14" src="/static/feed-icon-12x12.png"></a></div> </article> </div> <div class="item"> <article> <div class="code"> <a class="mono" href="/classification/?q=cc%3A15">15</a> </div> <div class="half"> <a href="/classification/?q=cc%3A15">Linear and multilinear algebra; matrix theory</a> <a target="_blank" href="/atom/cc/15"><img class="feed-icon" alt="Recent zbMATH articles in MSC 15" src="/static/feed-icon-12x12.png"></a></div> </article> </div> <div class="item"> <article> <div class="code"> <a class="mono" href="/classification/?q=cc%3A16">16</a> </div> <div class="half"> <a href="/classification/?q=cc%3A16">Associative rings and algebras</a> <a target="_blank" href="/atom/cc/16"><img class="feed-icon" alt="Recent zbMATH articles in MSC 16" src="/static/feed-icon-12x12.png"></a></div> </article> </div> <div class="item"> <article> <div class="code"> <a class="mono" href="/classification/?q=cc%3A17">17</a> </div> <div class="half"> <a href="/classification/?q=cc%3A17">Nonassociative rings and algebras</a> <a target="_blank" href="/atom/cc/17"><img class="feed-icon" alt="Recent zbMATH articles in MSC 17" src="/static/feed-icon-12x12.png"></a></div> </article> </div> <div class="item"> <article> <div class="code"> <a class="mono" href="/classification/?q=cc%3A18">18</a> </div> <div class="half"> <a href="/classification/?q=cc%3A18">Category theory; homological algebra</a> <a target="_blank" href="/atom/cc/18"><img class="feed-icon" alt="Recent zbMATH articles in MSC 18" src="/static/feed-icon-12x12.png"></a></div> </article> </div> <div class="item"> <article> <div class="code"> <a class="mono" href="/classification/?q=cc%3A19">19</a> </div> <div class="half"> <a href="/classification/?q=cc%3A19">$K$-theory</a> <a target="_blank" href="/atom/cc/19"><img class="feed-icon" alt="Recent zbMATH articles in MSC 19" src="/static/feed-icon-12x12.png"></a></div> </article> </div> <div class="item"> <article> <div class="code"> <a class="mono" href="/classification/?q=cc%3A20">20</a> </div> <div class="half"> <a href="/classification/?q=cc%3A20">Group theory and generalizations</a> <a target="_blank" href="/atom/cc/20"><img class="feed-icon" alt="Recent zbMATH articles in MSC 20" src="/static/feed-icon-12x12.png"></a></div> </article> </div> <div class="item"> <article> <div class="code"> <a class="mono" href="/classification/?q=cc%3A22">22</a> </div> <div class="half"> <a href="/classification/?q=cc%3A22">Topological groups, Lie groups</a> <a target="_blank" href="/atom/cc/22"><img class="feed-icon" alt="Recent zbMATH articles in MSC 22" src="/static/feed-icon-12x12.png"></a></div> </article> </div> <div class="item"> <article> <div class="code"> <a class="mono" href="/classification/?q=cc%3A26">26</a> </div> <div class="half"> <a href="/classification/?q=cc%3A26">Real functions</a> <a target="_blank" href="/atom/cc/26"><img class="feed-icon" alt="Recent zbMATH articles in MSC 26" src="/static/feed-icon-12x12.png"></a></div> </article> </div> <div class="item"> <article> <div class="code"> <a class="mono" href="/classification/?q=cc%3A28">28</a> </div> <div class="half"> <a href="/classification/?q=cc%3A28">Measure and integration</a> <a target="_blank" href="/atom/cc/28"><img class="feed-icon" alt="Recent zbMATH articles in MSC 28" src="/static/feed-icon-12x12.png"></a></div> </article> </div> <div class="item"> <article> <div class="code"> <a class="mono" href="/classification/?q=cc%3A30">30</a> </div> <div class="half"> <a href="/classification/?q=cc%3A30">Functions of a complex variable</a> <a target="_blank" href="/atom/cc/30"><img class="feed-icon" alt="Recent zbMATH articles in MSC 30" src="/static/feed-icon-12x12.png"></a></div> </article> </div> <div class="item"> <article> <div class="code"> <a class="mono" href="/classification/?q=cc%3A31">31</a> </div> <div class="half"> <a href="/classification/?q=cc%3A31">Potential theory</a> <a target="_blank" href="/atom/cc/31"><img class="feed-icon" alt="Recent zbMATH articles in MSC 31" src="/static/feed-icon-12x12.png"></a></div> </article> </div> <div class="item"> <article> <div class="code"> <a class="mono" href="/classification/?q=cc%3A32">32</a> </div> <div class="half"> <a href="/classification/?q=cc%3A32">Several complex variables and analytic spaces</a> <a target="_blank" href="/atom/cc/32"><img class="feed-icon" alt="Recent zbMATH articles in MSC 32" src="/static/feed-icon-12x12.png"></a></div> </article> </div> <div class="item"> <article> <div class="code"> <a class="mono" href="/classification/?q=cc%3A33">33</a> </div> <div class="half"> <a href="/classification/?q=cc%3A33">Special functions</a> <a target="_blank" href="/atom/cc/33"><img class="feed-icon" alt="Recent zbMATH articles in MSC 33" src="/static/feed-icon-12x12.png"></a></div> </article> </div></div> <div class="center"> <div class="item"> <article> <div class="code"> <a class="mono" href="/classification/?q=cc%3A34">34</a> </div> <div class="half"> <a href="/classification/?q=cc%3A34">Ordinary differential equations</a> <a target="_blank" href="/atom/cc/34"><img class="feed-icon" alt="Recent zbMATH articles in MSC 34" src="/static/feed-icon-12x12.png"></a></div> </article> </div> <div class="item"> <article> <div class="code"> <a class="mono" href="/classification/?q=cc%3A35">35</a> </div> <div class="half"> <a href="/classification/?q=cc%3A35">Partial differential equations</a> <a target="_blank" href="/atom/cc/35"><img class="feed-icon" alt="Recent zbMATH articles in MSC 35" src="/static/feed-icon-12x12.png"></a></div> </article> </div> <div class="item"> <article> <div class="code"> <a class="mono" href="/classification/?q=cc%3A37">37</a> </div> <div class="half"> <a href="/classification/?q=cc%3A37">Dynamical systems and ergodic theory</a> <a target="_blank" href="/atom/cc/37"><img class="feed-icon" alt="Recent zbMATH articles in MSC 37" src="/static/feed-icon-12x12.png"></a></div> </article> </div> <div class="item"> <article> <div class="code"> <a class="mono" href="/classification/?q=cc%3A39">39</a> </div> <div class="half"> <a href="/classification/?q=cc%3A39">Difference and functional equations</a> <a target="_blank" href="/atom/cc/39"><img class="feed-icon" alt="Recent zbMATH articles in MSC 39" src="/static/feed-icon-12x12.png"></a></div> </article> </div> <div class="item"> <article> <div class="code"> <a class="mono" href="/classification/?q=cc%3A40">40</a> </div> <div class="half"> <a href="/classification/?q=cc%3A40">Sequences, series, summability</a> <a target="_blank" href="/atom/cc/40"><img class="feed-icon" alt="Recent zbMATH articles in MSC 40" src="/static/feed-icon-12x12.png"></a></div> </article> </div> <div class="item"> <article> <div class="code"> <a class="mono" href="/classification/?q=cc%3A41">41</a> </div> <div class="half"> <a href="/classification/?q=cc%3A41">Approximations and expansions</a> <a target="_blank" href="/atom/cc/41"><img class="feed-icon" alt="Recent zbMATH articles in MSC 41" src="/static/feed-icon-12x12.png"></a></div> </article> </div> <div class="item"> <article> <div class="code"> <a class="mono" href="/classification/?q=cc%3A42">42</a> </div> <div class="half"> <a href="/classification/?q=cc%3A42">Harmonic analysis on Euclidean spaces</a> <a target="_blank" href="/atom/cc/42"><img class="feed-icon" alt="Recent zbMATH articles in MSC 42" src="/static/feed-icon-12x12.png"></a></div> </article> </div> <div class="item"> <article> <div class="code"> <a class="mono" href="/classification/?q=cc%3A43">43</a> </div> <div class="half"> <a href="/classification/?q=cc%3A43">Abstract harmonic analysis</a> <a target="_blank" href="/atom/cc/43"><img class="feed-icon" alt="Recent zbMATH articles in MSC 43" src="/static/feed-icon-12x12.png"></a></div> </article> </div> <div class="item"> <article> <div class="code"> <a class="mono" href="/classification/?q=cc%3A44">44</a> </div> <div class="half"> <a href="/classification/?q=cc%3A44">Integral transforms, operational calculus</a> <a target="_blank" href="/atom/cc/44"><img class="feed-icon" alt="Recent zbMATH 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