sl 2 ${mathfrak {sl}_2}$ qKZ 方程模为整数的解

IF 1 2区 数学 Q1 MATHEMATICS
Evgeny Mukhin, Alexander Varchenko
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We show that <span></span><math>\n <semantics>\n <mrow>\n <msub>\n <mi>f</mi>\n <mi>r</mi>\n </msub>\n <mrow>\n <mo>(</mo>\n <mi>z</mi>\n <mo>)</mo>\n </mrow>\n </mrow>\n <annotation>$f_r(z)$</annotation>\n </semantics></math> satisfy the <i>qKZ</i> equations modulo <span></span><math>\n <semantics>\n <mi>N</mi>\n <annotation>$N$</annotation>\n </semantics></math>. Polynomials <span></span><math>\n <semantics>\n <mrow>\n <msub>\n <mi>f</mi>\n <mi>r</mi>\n </msub>\n <mrow>\n <mo>(</mo>\n <mi>z</mi>\n <mo>)</mo>\n </mrow>\n </mrow>\n <annotation>$f_r(z)$</annotation>\n </semantics></math> are modulo <span></span><math>\n <semantics>\n <mi>N</mi>\n <annotation>$N$</annotation>\n </semantics></math> analogs of the hypergeometric solutions of the <i>qKZ</i> given in the form of multidimensional Barnes integrals.</p>","PeriodicalId":49989,"journal":{"name":"Journal of the London Mathematical Society-Second Series","volume":null,"pages":null},"PeriodicalIF":1.0000,"publicationDate":"2024-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Solutions of the \\n \\n \\n sl\\n 2\\n \\n ${\\\\mathfrak {sl}_2}$\\n qKZ equations modulo an integer\",\"authors\":\"Evgeny Mukhin,&nbsp;Alexander Varchenko\",\"doi\":\"10.1112/jlms.12884\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>We study the <i>qKZ</i> difference equations with values in the <span></span><math>\\n <semantics>\\n <mi>n</mi>\\n <annotation>$n$</annotation>\\n </semantics></math>th tensor power of the vector <span></span><math>\\n <semantics>\\n <msub>\\n <mi>sl</mi>\\n <mn>2</mn>\\n </msub>\\n <annotation>${\\\\mathfrak {sl}_2}$</annotation>\\n </semantics></math> representation <span></span><math>\\n <semantics>\\n <mi>V</mi>\\n <annotation>$V$</annotation>\\n </semantics></math>, variables <span></span><math>\\n <semantics>\\n <mrow>\\n <msub>\\n <mi>z</mi>\\n <mn>1</mn>\\n </msub>\\n <mo>,</mo>\\n <mi>⋯</mi>\\n <mo>,</mo>\\n <msub>\\n <mi>z</mi>\\n <mi>n</mi>\\n </msub>\\n </mrow>\\n <annotation>$z_1,\\\\dots,z_n$</annotation>\\n </semantics></math>, and integer step <span></span><math>\\n <semantics>\\n <mi>κ</mi>\\n <annotation>$\\\\kappa$</annotation>\\n </semantics></math>. 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We show that <span></span><math>\\n <semantics>\\n <mrow>\\n <msub>\\n <mi>f</mi>\\n <mi>r</mi>\\n </msub>\\n <mrow>\\n <mo>(</mo>\\n <mi>z</mi>\\n <mo>)</mo>\\n </mrow>\\n </mrow>\\n <annotation>$f_r(z)$</annotation>\\n </semantics></math> satisfy the <i>qKZ</i> equations modulo <span></span><math>\\n <semantics>\\n <mi>N</mi>\\n <annotation>$N$</annotation>\\n </semantics></math>. Polynomials <span></span><math>\\n <semantics>\\n <mrow>\\n <msub>\\n <mi>f</mi>\\n <mi>r</mi>\\n </msub>\\n <mrow>\\n <mo>(</mo>\\n <mi>z</mi>\\n <mo>)</mo>\\n </mrow>\\n </mrow>\\n <annotation>$f_r(z)$</annotation>\\n </semantics></math> are modulo <span></span><math>\\n <semantics>\\n <mi>N</mi>\\n <annotation>$N$</annotation>\\n </semantics></math> analogs of the hypergeometric solutions of the <i>qKZ</i> given in the form of multidimensional Barnes integrals.</p>\",\"PeriodicalId\":49989,\"journal\":{\"name\":\"Journal of the London Mathematical Society-Second Series\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":1.0000,\"publicationDate\":\"2024-03-27\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of the London Mathematical Society-Second Series\",\"FirstCategoryId\":\"100\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1112/jlms.12884\",\"RegionNum\":2,\"RegionCategory\":\"数学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"MATHEMATICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of the London Mathematical Society-Second Series","FirstCategoryId":"100","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1112/jlms.12884","RegionNum":2,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATHEMATICS","Score":null,"Total":0}
引用次数: 0

摘要

我们研究了在向量 sl 2 ${mathfrak {sl}_2}$ 表示 V $V$ 的 n $n$ 张量幂中取值的 qKZ 差分方程,变量 z 1 , ⋯ , z n $z_1,\dots,z_n$ 以及整数步长 κ $\kappa$ 。对于与步长 κ $kappa$ 相对质数的任意整数 N $N$ ,我们构造了变量 z 1 , ⋯ , z n $z_1,\dots,z_n$ 在 V ⊗ n $V^{otimes n}$ 中取值的多项式 f r ( z ) $f_r(z)$ 族,使得这些多项式相对于 V ⊗ n $V^{otimes n}$ 的标准基的坐标是具有整数系数的多项式。我们证明 f r ( z ) $f_r(z)$ 满足模为 N $N$ 的 qKZ 方程。多项式 f r ( z ) $f_r(z)$ 是以多维巴恩斯积分形式给出的 qKZ 超几何解的 N $N$ 模类似物。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Solutions of the sl 2 ${\mathfrak {sl}_2}$ qKZ equations modulo an integer

We study the qKZ difference equations with values in the n $n$ th tensor power of the vector sl 2 ${\mathfrak {sl}_2}$ representation V $V$ , variables z 1 , , z n $z_1,\dots,z_n$ , and integer step κ $\kappa$ . For any integer N $N$ relatively prime to the step κ $\kappa$ , we construct a family of polynomials f r ( z ) $f_r(z)$ in variables z 1 , , z n $z_1,\dots,z_n$ with values in V n $V^{\otimes n}$ such that the coordinates of these polynomials with respect to the standard basis of V n $V^{\otimes n}$ are polynomials with integer coefficients. We show that f r ( z ) $f_r(z)$ satisfy the qKZ equations modulo N $N$ . Polynomials f r ( z ) $f_r(z)$ are modulo N $N$ analogs of the hypergeometric solutions of the qKZ given in the form of multidimensional Barnes integrals.

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来源期刊
CiteScore
1.90
自引率
0.00%
发文量
186
审稿时长
6-12 weeks
期刊介绍: The Journal of the London Mathematical Society has been publishing leading research in a broad range of mathematical subject areas since 1926. The Journal welcomes papers on subjects of general interest that represent a significant advance in mathematical knowledge, as well as submissions that are deemed to stimulate new interest and research activity.
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