{"title":"Tridiagonal M-matrices with tridiagonal Moore-Penrose inverse","authors":"M.I. Bueno , Susana Furtado , K. Kranthi Priya , K.C. Sivakumar","doi":"10.1016/j.amc.2025.129640","DOIUrl":null,"url":null,"abstract":"<div><div>In this paper, we characterize the singular tridiagonal <em>M</em>-matrices whose Moore-Penrose inverse is tridiagonal, extending the recent result (Barreras and Peña, 2019) describing the nonsingular tridiagonal M-matrices whose inverse is tridiagonal.</div></div>","PeriodicalId":55496,"journal":{"name":"Applied Mathematics and Computation","volume":"508 ","pages":"Article 129640"},"PeriodicalIF":3.4000,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Applied Mathematics and Computation","FirstCategoryId":"100","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0096300325003662","RegionNum":2,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATHEMATICS, APPLIED","Score":null,"Total":0}
引用次数: 0
Abstract
In this paper, we characterize the singular tridiagonal M-matrices whose Moore-Penrose inverse is tridiagonal, extending the recent result (Barreras and Peña, 2019) describing the nonsingular tridiagonal M-matrices whose inverse is tridiagonal.
期刊介绍:
Applied Mathematics and Computation addresses work at the interface between applied mathematics, numerical computation, and applications of systems – oriented ideas to the physical, biological, social, and behavioral sciences, and emphasizes papers of a computational nature focusing on new algorithms, their analysis and numerical results.
In addition to presenting research papers, Applied Mathematics and Computation publishes review articles and single–topics issues.