RT Journal Article
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 Baena, Manuel Enrique
A2 Elsevier, 
AB 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.
PB Elsevier
SN 0001-8708
YR 2023
FD 2023
LK https://hdl.handle.net/20.500.14352/96436
UL https://hdl.handle.net/20.500.14352/96436
LA eng
NO Amílcar Branquinho, Ana Foulquié-Moreno, Manuel Mañas, Spectral theory for bounded banded matrices with positive bidiagonal factorization and mixed multiple orthogonal polynomials, Advances in Mathematics, Volume 434, 2023, 109313, ISSN 0001-8708, https://doi.org/10.1016/j.aim.2023.109313.
NO Fundação para a Ciência e a Tecnologia (Portugal)
NO Unión Europea
NO CIDMA Center for Research and Development in Mathematics and Applications (Portugal)
NO Agencia Estatal de Investigación 
DS Docta Complutense
RD 9 abr 2025