Transformations of Heun's equation and its integral relations
Mathematical Physics
2015-05-18 v3 math.MP
Abstract
We find transformations of variables which preserve the form of the equation for the kernels of integral relations among solutions of the Heun equation. These transformations lead to new kernels for the Heun equation, given by single hypergeometric functions (Lambe-Ward-type kernels) and by products of two hypergeometric functions (Erd\'elyi-type). Such kernels, by a limiting process, also afford new kernels for the confluent Heun equation.
Cite
@article{arxiv.1002.4559,
title = {Transformations of Heun's equation and its integral relations},
author = {Léa Jaccoud El-Jaick and Bartolomeu D. B. Figueiredo},
journal= {arXiv preprint arXiv:1002.4559},
year = {2015}
}
Comments
This version was published in J. Phys. A: Math. Theor. 44 (2011) 075204