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A note on regularity and positive definiteness of interval matrices
- 1.0367894 - ÚI 2012 RIV PL eng J - Journal Article
Farhadsefat, R. - Lotfi, T. - Rohn, Jiří
A note on regularity and positive definiteness of interval matrices.
Central European Journal of Mathematics. Roč. 10, č. 1 (2012), s. 322-328. ISSN 1895-1074
Institutional research plan: CEZ:AV0Z10300504
Keywords : interval matrix * regularity condition * positive definiteness
Subject RIV: BA - General Mathematics
Impact factor: 0.405, year: 2012
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.
Permanent Link: http://hdl.handle.net/11104/0202410
Number of the records: 1