170919 20260430151735.0 doi 10.1007/s10092-026-00692-1 sideral 149000 ART-2026-149000 eng Ballarín, Jorge Universidad de Zaragoza Accurate computations with Riordan arrays associated with Schröder matrices 2026 Large and little Schröder matrices as well as with their inverses are triangular matrices arising in Combinatorics. Through their total positivity and bidiagonal decomposition it is shown that their singular values, inverses and some associated linear systems can be solved with high relative accuracy. Numerical experiments confirm the theoretical results. Access copy available to the general public Unrestricted info:eu-repo/grantAgreement/ES/DGA/E41-23R info:eu-repo/grantAgreement/ES/MCIU/PID2022-138569NB-I00 info:eu-repo/grantAgreement/ES/MCIU/RED2022-134176-T info:eu-repo/semantics/openAccess by https://creativecommons.org/licenses/by/4.0/deed.es info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Delgado, Jorge Universidad de Zaragoza (orcid)0000-0003-2156-9856 Peña, Juan Manuel Universidad de Zaragoza (orcid)0000-0002-1340-0666 2005 595 Universidad de Zaragoza Dpto. Matemática Aplicada Área Matemática Aplicada 63, 2 (2026), [26 pp.] Calcolo CALCOLO 0008-0624 3789531 http://zaguan.unizar.es/record/170919/files/texto_completo.pdf Versión publicada 986641 http://zaguan.unizar.es/record/170919/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:170919 articulos driver 2026-04-30-13:57:05 ARTICLE