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math.CA2025

Matrix Bessel Biorthogonal Polynomials: A Riemann-Hilbert approach

Amílcar Branquinho, Ana Foulquié-Moreno, Assil Fradi +1

We consider matrix orthogonal polynomials related to Bessel type matrices of weights that can be defined in terms of a given matrix Pearson equation. From a Riemann-Hilbert problem…