Abstract (EN):
Let A and B be n x n matrices over an algebraically closed field F. The pair (A, B) is said to be spectrally complete if, for every sequence c(1),..., c(n) is an element of F such that det(AB) = c(1),..., c(n), there exist matrices A', B' is an element of F-n xn similar to A, B, respectively, such that A'B' has eigenvalues c(1),..., c(n). In this article, we describe the spectrally complete pairs. Assuming that A and B are nonsingular, the possible eigenvalues of A'B', when A' and B' run over the sets of the matrices similar to A and B, respectively, were described in a previous article.
Idioma:
Inglês
Tipo (Avaliação Docente):
Científica
Nº de páginas:
11