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Block diagonalisation of Hermitian matrices

โœ Scribed by Cederbaum, L S; Schirmer, J; Meyer, H -D

Book ID
120198600
Publisher
Institute of Physics
Year
1989
Tongue
English
Weight
810 KB
Volume
22
Category
Article
ISSN
0305-4470

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We characterize sets of inertias of some partitioned Hermitian matrices by a system of inequalities involving the orders of the blocks, the inert& of the diagonal blocks, and the ranks of the nondiagonal blocks. The main result generalizes some well-known characterizations of .% and Cain and others.