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20212026
most citedHypergeometric solutions for variants of the -hypergeometric equation

1 citations · 1 across the 7 of their papers we have counts for

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9 papers

math.QA2026

An integral representation of eigenfunctions for the deformed Noumi--Sano operators

Taikei Fujii, Takahiko Nobukawa

The deformed Noumi-Sano operator of order is a simultaneous extension of the Macdonald operator and the Noumi-Sano operator. In this paper, we construct an i…

math.QA2025

A linear -difference system with -symmetry

Takahiko Nobukawa

We present a linear -difference equation of rank , which admits the affine Weyl group symmetry of type . We further compare this equation with Moriyama-Yamada's qu…

math.CO2024

Special values of -theoretic Schur - and -functions

Takahiko Nobukawa, Tatsushi Shimazaki

We provide the special values of the skew version of the -theoretic Schur - and -functions. Using these special values, we show an oddness property of the number of shifte…

math.CA2024

Connection formula for the Jackson integral of Riemann-Papperitz type

Taikei Fujii, Takahiko Nobukawa

We give a connection formula for the Jackson integral of Riemann-Papperitz type. This includes a solution of the connection problem for the variant of -hypergeometric equation o…

math.CO2024

Special values of Grothendieck polynomials in terms of hypergeometric functions

Taikei Fujii, Takahiko Nobukawa, Tatsushi Shimazaki

We give some special values of Grothendieck polynomials and an explicit formula for the number of set-valued tableaux. For Young diagrams consisting of a single row or a single col…

math.CA2024

Jackson integral representation for a multiple -hypergeometric series and an extension of the -Riemann-Papperitz system

Takahiko Nobukawa

We give a Jackson integral representation for Kajihara's -hypergeometric series . We construct a -difference system that corresponds to this integral. This system is…

math.CO2023

A recursive method for the oddness of the number of set-valued tableaux

Taikei Fujii, Takahiko Nobukawa, Tatsushi Shimazaki

Set-valued tableaux, introduced by Buch to express the tableaux-sum formula for stable Grothendieck polynomials, generalize semistandard tableaux. We provide a new recursive proof…

math.CA2022★ 1 cited

Hypergeometric solutions for variants of the -hypergeometric equation

Taikei Fujii, Takahiko Nobukawa

We introduce a configuration of a -difference equation and characterize the variants of the -hypergeometric equation, which were defined by Hatano-Matsunawa-Sato-Takemura, by…

math.CA2021

Connection Problem for an Extension of -Hypergeometric Systems

Takahiko Nobukawa

We give an example of solutions of the connection problem associated with a certain system of linear -difference equations recently introduced by Park. The result contains a con…