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Physical Sciences and Engineering Mathematics Analysis

Some results on Fredholmness and boundedness below of an upper triangular operator matrix

Article ID Journal Published Year Pages File Type
4615555 Journal of Mathematical Analysis and Applications 2015 12 Pages PDF
Abstract

In this paper, for given operators A∈B(H)A∈B(H) and B∈B(K)B∈B(K), we completely describe the set of all C∈B(K,H)C∈B(K,H) such that MCMC is bounded below, left (right) semi-Fredholm, respectively.

Keywords
Fredholm operatorSpectrumOperator matrices
Related Topics
Physical Sciences and Engineering Mathematics Analysis
Preview
Some results on Fredholmness and boundedness below of an upper triangular operator matrix
Authors
Dragana S. Cvetković-Ilić, Guojun Hai, Alatancang Chen,
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Journal
Journal of Mathematical Analysis and Applications
Journal: Journal of Mathematical Analysis and Applications
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Spectrum
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