A Generalization of Zwegers' -Function According to the -Hermite-Weber Difference Equation

We introduce a one-parameter deformation of the Zwegers' -function as the image of -Borel and -Laplace transformations of a fundamental solution for the -Hermite-Weber equation. We further give some formulas for our generalized -function, for example, forward and backward shift, translation, sy...

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Published in:Symmetry, Integrability and Geometry: Methods and Applications
Date:2023
Main Authors: Shibukawa, Genki, Tsuchimi, Satoshi
Format: Article
Language:English
Published: Інститут математики НАН України 2023
Online Access:https://nasplib.isofts.kiev.ua/handle/123456789/211870
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Journal Title:Digital Library of Periodicals of National Academy of Sciences of Ukraine
Cite this:A Generalization of Zwegers' -Function According to the -Hermite-Weber Difference Equation. Genki Shibukawa and Satoshi Tsuchimi. SIGMA 19 (2023), 014, 23 pages

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Digital Library of Periodicals of National Academy of Sciences of Ukraine
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author Shibukawa, Genki
Tsuchimi, Satoshi
author_facet Shibukawa, Genki
Tsuchimi, Satoshi
citation_txt A Generalization of Zwegers' -Function According to the -Hermite-Weber Difference Equation. Genki Shibukawa and Satoshi Tsuchimi. SIGMA 19 (2023), 014, 23 pages
collection DSpace DC
container_title Symmetry, Integrability and Geometry: Methods and Applications
description We introduce a one-parameter deformation of the Zwegers' -function as the image of -Borel and -Laplace transformations of a fundamental solution for the -Hermite-Weber equation. We further give some formulas for our generalized -function, for example, forward and backward shift, translation, symmetry, a difference equation for the new parameter, and bilateral -hypergeometric expressions. From one point of view, the continuous -Hermite polynomials are some special cases of our -function, and the Zwegers' -function is regarded as a continuous -Hermite polynomial of ''−1 degree''.
first_indexed 2026-03-13T17:26:32Z
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institution Digital Library of Periodicals of National Academy of Sciences of Ukraine
issn 1815-0659
language English
last_indexed 2026-03-13T17:26:32Z
publishDate 2023
publisher Інститут математики НАН України
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spelling Shibukawa, Genki
Tsuchimi, Satoshi
2026-01-14T09:54:09Z
2023
A Generalization of Zwegers' -Function According to the -Hermite-Weber Difference Equation. Genki Shibukawa and Satoshi Tsuchimi. SIGMA 19 (2023), 014, 23 pages
1815-0659
2020 Mathematics Subject Classification: 33D15; 39A13; 30D05; 11F50; 33D70
arXiv:2206.15137
https://nasplib.isofts.kiev.ua/handle/123456789/211870
https://doi.org/10.3842/SIGMA.2023.014
We introduce a one-parameter deformation of the Zwegers' -function as the image of -Borel and -Laplace transformations of a fundamental solution for the -Hermite-Weber equation. We further give some formulas for our generalized -function, for example, forward and backward shift, translation, symmetry, a difference equation for the new parameter, and bilateral -hypergeometric expressions. From one point of view, the continuous -Hermite polynomials are some special cases of our -function, and the Zwegers' -function is regarded as a continuous -Hermite polynomial of ''−1 degree''.
We are grateful to Professor Yasuhiko Yamada (Kobe University) for his helpful advice on our paper. We also wish to thank Professor Yosuke Ohyama (Tokushima University) for his valuable suggestions on -special functions, including in the unpublished proof of Lemma 2.2 [17]. We are also indebted to Professor Kazuhiro Hikami (Kyushu University) for his information on [7] and quantum invariants. Professor Toshiki Matsusaka (Kyushu University) also provides information on [7] and his note [15]. Some pieces of information on the -Appell hypergeometric function Φ(1) and its -difference equations are provided by Dr. T. Nobukawa. Finally, we thank the referees for their helpful comments about mock and indefinite theta functions. This work was supported by JSPS KAKENHI Grant Number 21K13808.
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Інститут математики НАН України
Symmetry, Integrability and Geometry: Methods and Applications
A Generalization of Zwegers' -Function According to the -Hermite-Weber Difference Equation
Article
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spellingShingle A Generalization of Zwegers' -Function According to the -Hermite-Weber Difference Equation
Shibukawa, Genki
Tsuchimi, Satoshi
title A Generalization of Zwegers' -Function According to the -Hermite-Weber Difference Equation
title_full A Generalization of Zwegers' -Function According to the -Hermite-Weber Difference Equation
title_fullStr A Generalization of Zwegers' -Function According to the -Hermite-Weber Difference Equation
title_full_unstemmed A Generalization of Zwegers' -Function According to the -Hermite-Weber Difference Equation
title_short A Generalization of Zwegers' -Function According to the -Hermite-Weber Difference Equation
title_sort generalization of zwegers' -function according to the -hermite-weber difference equation
url https://nasplib.isofts.kiev.ua/handle/123456789/211870
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