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arXiv:1304.5762 [math.RT]AbstractReferencesReviewsResources

Change of the *congruence canonical form of 2-by-2 matrices under perturbations

Vyacheslav Futorny, Lena Klimenko, Vladimir V. Sergeichuk

Published 2013-04-21Version 1

We study how small perturbations of a 2-by-2 complex matrix can change its canonical form for *congruence. We construct the Hasse diagram for the closure ordering on the set of *congruence classes of 2-by-2 matrices.

Comments: 8 pages. arXiv admin note: substantial text overlap with arXiv:1105.2160
Journal: Electr. J. Linear Algebra 27 (2014) 146-154
Categories: math.RT
Subjects: 15A21, 15A63
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