Signal processing, orthogonal polynomials, and Heun equations
arXiv:1903.00144
Abstract
A survey of recents advances in the theory of Heun operators is offered. Some of the topics covered include: quadratic algebras and orthogonal polynomials, differential and difference Heun operators associated to Jacobi and Hahn polynomials, connections with time and band limiting problems in signal processing.
18 pages, based on a lecture prepared by Luc Vinet for the AIMS-Volkswagen workshop 2018 in Douala, Cameroun