Resumen: The total positivity of collocation, Wronskian and Gram matrices corresponding to bases of the form (eλt,teλt,…,tneλt) is analyzed. A bidiagonal decomposition providing the accurate numerical resolution of algebraic linear problems with these matrices is derived. The numerical experimentation confirms the accuracy of the proposed methods. Idioma: Inglés DOI: 10.1007/s10444-022-09954-2 Año: 2022 Publicado en: ADVANCES IN COMPUTATIONAL MATHEMATICS 48, 4 (2022), 38 [25 pp.] ISSN: 1019-7168 Factor impacto JCR: 1.7 (2022) Categ. JCR: MATHEMATICS, APPLIED rank: 95 / 267 = 0.356 (2022) - Q2 - T2 Factor impacto CITESCORE: 3.4 - Mathematics (Q2)