|
A Generalization of Zwegers' $\mu$-Function According to the $q$-Hermite–Weber Difference Equation
Genki Shibukawa, Satoshi Tsuchimi Department of Mathematics, Kobe University, Rokko, 657-8501, Japan
Abstract:
We introduce a one parameter deformation of the Zwegers' $\mu$-function as the image of $q$-Borel and $q$-Laplace transformations of a fundamental solution for the $q$-Hermite–Weber equation. We further give some formulas for our generalized $\mu$-function, for example, forward and backward shift, translation, symmetry, a difference equation for the new parameter, and bilateral $q$-hypergeometric expressions. From one point of view, the continuous $q$-Hermite polynomials are some special cases of our $\mu$-function, and the Zwegers' $\mu$-function is regarded as a continuous $q$-Hermite polynomial of "$-1$ degree".
Keywords:
Appell–Lerch series, $q$-Boerl transformation, $q$-Laplace transformation, $q$-hypergeometric series, continuous $q$-Hermite polynomial, mock theta functions.
Received: July 2, 2022; in final form February 25, 2023; Published online March 23, 2023
Citation:
Genki Shibukawa, Satoshi Tsuchimi, “A Generalization of Zwegers' $\mu$-Function According to the $q$-Hermite–Weber Difference Equation”, SIGMA, 19 (2023), 014, 23 pp.
Linking options:
https://www.mathnet.ru/eng/sigma1909 https://www.mathnet.ru/eng/sigma/v19/p14
|
Statistics & downloads: |
Abstract page: | 67 | Full-text PDF : | 10 | References: | 10 |
|