Darboux evaluations for hypergeometric functions with the projective monodromy PSL(2,F7)

被引:0
|
作者
Vidunas, Raimundas [1 ]
机构
[1] Vilnius Univ, Inst Appl Math, Vilnius, Lithuania
来源
RAMANUJAN JOURNAL | 2020年 / 53卷 / 01期
关键词
Algebraic hypergeometric functions; Pull-back transformations; Monodromy; Klein's curve; Modular functions; DIFFERENTIAL-EQUATIONS; TRANSFORMATIONS;
D O I
10.1007/s11139-019-00229-x
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
Algebraic hypergeometric functions can be compactly expressed as radical functions on pull-back curves where the monodromy group is simpler, say, a finite cyclic group. These so-called Darboux evaluations have already been considered for algebraic F-2(1)-functions. This article presents Darboux evaluations for the classical case of F-3(2)-functions with the projective monodromy group PSL(2, F-7). The pullback curves are of genus 0 (in the simplest case) or of genus 1. As an application of the genus 0 evaluations, appealing modular evaluations of the same F-3(2)-functions are derived.
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页码:85 / 121
页数:37
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