2 papers
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…
math.CA2023
Matrix Orthogonal Polynomials: A Riemann--Hilbert approach
Amílcar Branquinho, Ana Foulquié-Moreno, Assil Fradi +1
In this work we show how to get advantage from the Riemann--Hilbert analysis in order to obtain information about the matrix orthogonal polynomials and functions of second kind ass…