Autor:	Projesh Nath Choudhury, Michael J. Tsatsomeros
Rok vydání:	2020
Předmět:	Combinatorics Numerical Analysis Matrix (mathematics) Algebra and Number Theory Discrete Mathematics and Combinatorics Geometry and Topology Characterization (mathematics) Mathematics
Zdroj:	Linear Algebra and its Applications. 602:46-56
ISSN:	0024-3795
Popis:	N-matrices are real n × n matrices all of whose principal minors are negative. We provide (i) an O ( 2 n ) test to detect whether or not a given matrix is an N-matrix, and (ii) a characterization of N-matrices, leading to the recursive construction of every N-matrix.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::490f03c8fb7662e4874d3b255d15aa99 https://doi.org/10.1016/j.laa.2020.04.028 Zobrazit plný text záznamu Full Text from ScienceDirect