TY - JOUR AU - Branquinho, Amílcar AU - Foulquié Moreno, Ana AU - Mañas Baena, Manuel Enrique PY - 2023 DO - 10.1016/j.laa.2023.08.001 SN - 0024-3795 UR - https://hdl.handle.net/20.500.14352/102905 T2 - Linear Algebra and its Applications AB - Recently, a spectral Favard theorem was presented for bounded banded lower Hessenberg matrices that possess a positive bidiagonal factorization. The paper establishes conditions, expressed in terms of continued fractions, under which an oscillatory... LA - eng M2 - 132 PB - Elsevier KW - Banded Hessenberg matrices KW - Oscillatory matrices KW - Totally nonnegative matrices TI - Positive bidiagonal factorization of tetradiagonal Hessenberg matrices TY - journal article VL - 677 ER -