{"title":"A-hypergeometric series and a p-adic refinement of the Hasse-Witt matrix","authors":"Alan Adolphson, Steven Sperber","doi":"10.1007/s12188-021-00243-1","DOIUrl":null,"url":null,"abstract":"<div><p>We identify the <i>p</i>-adic unit roots of the zeta function of a projective hypersurface over a finite field of characteristic <i>p</i> as the eigenvalues of a product of special values of a certain matrix of <i>p</i>-adic series. That matrix is a product <span>\\(F(\\varLambda ^p)^{-1}F(\\varLambda )\\)</span>, where the entries in the matrix <span>\\(F(\\varLambda )\\)</span> are <i>A</i>-hypergeometric series with integral coefficients and <span>\\(F(\\varLambda )\\)</span> is independent of <i>p</i>.</p></div>","PeriodicalId":50932,"journal":{"name":"Abhandlungen aus dem Mathematischen Seminar der Universität Hamburg","volume":null,"pages":null},"PeriodicalIF":0.4000,"publicationDate":"2021-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/s12188-021-00243-1","citationCount":"4","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Abhandlungen aus dem Mathematischen Seminar der Universität Hamburg","FirstCategoryId":"100","ListUrlMain":"https://link.springer.com/article/10.1007/s12188-021-00243-1","RegionNum":4,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MATHEMATICS","Score":null,"Total":0}
引用次数: 4
Abstract
We identify the p-adic unit roots of the zeta function of a projective hypersurface over a finite field of characteristic p as the eigenvalues of a product of special values of a certain matrix of p-adic series. That matrix is a product \(F(\varLambda ^p)^{-1}F(\varLambda )\), where the entries in the matrix \(F(\varLambda )\) are A-hypergeometric series with integral coefficients and \(F(\varLambda )\) is independent of p.
期刊介绍:
The first issue of the "Abhandlungen aus dem Mathematischen Seminar der Universität Hamburg" was published in the year 1921. This international mathematical journal has since then provided a forum for significant research contributions. The journal covers all central areas of pure mathematics, such as algebra, complex analysis and geometry, differential geometry and global analysis, graph theory and discrete mathematics, Lie theory, number theory, and algebraic topology.