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Congruential automorphism groups of general matrices

Title
Congruential automorphism groups of general matrices
Type
Article in International Scientific Journal
Year
2004
Authors
Susana Borges Furtado
(Author)
FEP
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Charles Johnson
(Author)
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Journal
Vol. 376
Pages: 291-298
ISSN: 0024-3795
Publisher: Elsevier
Indexing
Publicação em ISI Web of Science ISI Web of Science
Scientific classification
FOS: Natural sciences
Other information
Authenticus ID: P-000-D5J
Abstract (EN): For A epsilon M-n (C), Aut(A), the congruential automorphism group of A, is the set of all non-singular C epsilon M-n(C) such that C*AC = A. Here, the A for which Aut(A) is bounded are described, and this allows the characterization of pairs A, B for which the set of matrices carrying the congruence of A to B is compact. This characterization is in terms of non-singular unitoid matrices in which certain configurations of canonical angles are forbidden.
Language: English
Type (Professor's evaluation): Scientific
No. of pages: 8
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