Determinants of Period Matrices and an Application to Selberg's Multidimensional Beta Integral

In work on critical values of linear functions and hyperplane arrangements, A. Varchenko (Izv. Akad. Nauk SSSR Ser. Mat.53 (1989), 1206–1235; 54 (1990), 146–158) defined certain period matrices whose entries are Euler-type integrals representing hypergeometric functions of several variables and deri...

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Vydáno v:Advances in applied mathematics Ročník 28; číslo 3-4; s. 602 - 633
Hlavní autoři: Richards, Donald, Zheng, Qifu
Médium: Journal Article
Jazyk:angličtina
Vydáno: San Diego, CA Elsevier Inc 01.04.2002
Elsevier
Témata:
Binet–Cauchy formula
Exact sciences and technology
hypergeometric period matrix
Mathematical analysis
Mathematics
Measure and integration
Sciences and techniques of general use
Selberg's integral
Vandermonde determinant
hypergeometric period matrix
Binet–Cauchy formula
Selberg's integral
Vandermonde determinant
Integration
Selberg integral
Matrix algebra
Period matrix
Binet Cauchy formula
Hypergeometric function
Integral
ISSN:0196-8858, 1090-2074
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Shrnutí:In work on critical values of linear functions and hyperplane arrangements, A. Varchenko (Izv. Akad. Nauk SSSR Ser. Mat.53 (1989), 1206–1235; 54 (1990), 146–158) defined certain period matrices whose entries are Euler-type integrals representing hypergeometric functions of several variables and derived remarkable closed-form expressions for the determinants of those matrices. In this article, we present elementary proofs of some of Varchenko's determinant formulas. By the same method, we obtain proofs of variations of Varchenko's determinants. As an application, we deduce new proofs of the multidimensional beta integrals of Selberg and of Aomoto. Further, we obtain a new proof of a determinant formula of A. Varchenko (Funct. Anal. Appl.25 (1999), 304–305) in which the entries are multidimensional Selberg-type integrals.
ISSN:0196-8858
1090-2074
DOI:10.1006/aama.2001.0798