TY: JOUR
T1 - Spectral theory for bounded banded matrices with positive bidiagonal factorization and mixed multiple orthogonal polynomials
A1 - Branquinho, Amílcar
A1 - Foulquié-Moreno, Ana
A1 - Mañas, Manuel
N2 - Spectral and factorization properties of oscillatory matrices lead to a spectral Favard theorem for bounded banded matrices, that admit a positive bidiagonal factorization, in terms of sequences of mixed multiple orthogonal polynomials with respect to a set positive Lebesgue?Stieltjes measures. A mixed multiple Gauss quadrature formula with corresponding degrees of precision is given
UR - https://ria.ua.pt/handle/10773/39833
Y1 - 2023
PB - Elsevier