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A note on regularity and positive definiteness of interval matrices

SYSNO ASEP	0367894
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	A note on regularity and positive definiteness of interval matrices
Author(s)	Farhadsefat, R. (IR) Lotfi, T. (IR) Rohn, Jiří (UIVT-O)_{SAI, RID, ORCID}
Source Title	Central European Journal of Mathematics - ISSN 1895-1074 Roč. 10, č. 1 (2012), s. 322-328
Number of pages	7 s.
Language	eng - English
Country	PL - Poland
Keywords	interval matrix ; regularity condition ; positive definiteness
Subject RIV	BA - General Mathematics
CEZ	AV0Z10300504 - UIVT-O (2005-2011)
UT WOS	000297867600024
EID SCOPUS	83055176239
DOI	10.2478/s11533-011-0118-8
Annotation	We present a sufficient regularity condition for interval matrices which generalizes two previously known ones. It is formulated in terms of positive definiteness of a certain point matrix, and can also be used for checking positive definiteness of interval matrices. Comparing it with Beeck’s strong regularity condition, we show by counterexamples that none of the two conditions is more general than the other one.
Workplace	Institute of Computer Science
Contact	Tereza Šírová, sirova@cs.cas.cz, Tel.: 266 053 800
Year of Publishing	2012

Number of the records: 1