Some inequalities for commutators and an application to spectral variation.
R. Bhatia, Ch. Davis, F. Kittaneh (1990)
Aequationes mathematicae
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Displaying similar documents to “Spectral properties of cosine operator functions.”
Some inequalities for commutators and an application to spectral variation.
Some inequalities for commutators and an application to spectral variation.
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2000 Mathematics Subject Classification: 15A29. In this paper we introduced a notion of the generalized spectral function for a matrix J = (gk,l)k,l = 0 Ґ, gk,l О C, such that gk,l = 0, if |k-l | > N; gk,k+N = 1, and gk,k-N № 0. Here N is a fixed positive integer. The direct and inverse spectral problems for such matrices are stated and solved. An integral representation for the generalized spectral function is obtained.