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.
arXiv comment18 pages, based on a lecture prepared by Luc Vinet for the AIMS-Volkswagen workshop 2018 in Douala, Cameroun