Poly-meromorphic It\^o-Hermite functions associated with a singular potential vector on the punctured complex plane

TL;DR

This paper introduces a new family of orthogonal functions on the punctured complex plane, extending Itô-Hermite polynomials to a poly-meromorphic setting, and analyzes their properties related to magnetic Laplacians with singular potentials.

Contribution

It provides a theoretical framework for poly-meromorphic Itô-Hermite functions, including explicit formulas, operational representations, and generating functions, in the context of the Aharonov-Bohm effect.

Findings

Derived explicit expressions in terms of special functions

Established generating functions and integral representations

Extended poly-analytic polynomials to a new poly-meromorphic setting

Abstract

We provide a theoretical study of a new family of orthogonal functions on the punctured complex plane solving the eigenvalue problems for some magnetic Laplacian perturbed by a singular vector potential with zero magnetic field modeling the Aharonov-Bohm effect. The functions are defined by their $\beta$-modified Rodrigues type formula and extend the poly-analytic It\^o--Hermite polynomials to the poly-meromorphic setting. Mainly, we derive their different operational representations and give their explicit expressions in terms of special functions. Different generating functions and integral representations are obtained.