{"title":"A simple proof of non-explosion for measure solutions of the Keller-Segel equation","authors":"N. Fournier, Yoan Tardy","doi":"10.3934/krm.2022026","DOIUrl":null,"url":null,"abstract":"<p style='text-indent:20px;'>We give a simple proof, relying on a <i>two-particles</i> moment computation, that there exists a global weak solution to the <inline-formula><tex-math id=\"M1\">\\begin{document}$ 2 $\\end{document}</tex-math></inline-formula>-dimensional parabolic-elliptic Keller-Segel equation when starting from any initial measure <inline-formula><tex-math id=\"M2\">\\begin{document}$ f_0 $\\end{document}</tex-math></inline-formula> such that <inline-formula><tex-math id=\"M3\">\\begin{document}$ f_0( {\\mathbb{R}}^2)< 8 \\pi $\\end{document}</tex-math></inline-formula>.</p>","PeriodicalId":1,"journal":{"name":"Accounts of Chemical Research","volume":null,"pages":null},"PeriodicalIF":16.4000,"publicationDate":"2022-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Accounts of Chemical Research","FirstCategoryId":"100","ListUrlMain":"https://doi.org/10.3934/krm.2022026","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 3
Abstract
We give a simple proof, relying on a two-particles moment computation, that there exists a global weak solution to the \begin{document}$ 2 $\end{document}-dimensional parabolic-elliptic Keller-Segel equation when starting from any initial measure \begin{document}$ f_0 $\end{document} such that \begin{document}$ f_0( {\mathbb{R}}^2)< 8 \pi $\end{document}.
We give a simple proof, relying on a two-particles moment computation, that there exists a global weak solution to the \begin{document}$ 2 $\end{document}-dimensional parabolic-elliptic Keller-Segel equation when starting from any initial measure \begin{document}$ f_0 $\end{document} such that \begin{document}$ f_0( {\mathbb{R}}^2)< 8 \pi $\end{document}.
期刊介绍：
Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance.
Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.
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