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math.CA2008
Matrix differential equations and scalar polynomials satisfying higher order recursions
Antonio J. Duran, F. Alberto Grünbaum
We show that any scalar differential operator with a family of polyno- mials as its common eigenfunctions leads canonically to a matrix differen- tial operator with the same proper…
math.CA2007★ 16 cited
The Rahman Polynomials Are Bispectral
F. Alberto Grünbaum
In a very recent paper, M. Rahman introduced a remarkable family of polynomials in two variables as the eigenfunctions of the transition matrix for a nontrivial Markov chain due to…