Spectral variation under congruence for a nonsingular matrix with 0 on the boundary of its 9 field of values

• Type: Article in International Scientific Journal
• Date: 2003

Authors

Susana Borges Furtado (Author) FEP; Johnson, CR (Author) Other

Journal

Title: Linear Algebra and Its Applications

Vol. 359

Pages: 67-78

ISSN: 0024-3795

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 13 Citations

Scopus - 12 Citations

Other information

Authenticus ID: P-000-J10

DOI: 10.1016/s0024-3795(02)00429-9

Abstract (EN): In this paper we describe the possible spectra among matrices congruent to a given nonsingular matrix A is an element of M-n (C) such that 0 is a boundary point of its field of values. In the process we give a reducible form under congruence for A. If A is either singular or such that 0 is not a boundary point of its field of values, the possible spectra among matrices congruent to A were studied in [Linear and Multilinear Algebra 49 (2001) 243].

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 12