Weyl type theorem and spectrum for \(k\)-quasi-\(\ast\)-class \(A\) operators

zbMATH Open1306.47017MaRDI QIDQ2844306

D. Senthil Kumar, P. Maheswari Naik, C. V. Seshaiah, A. Sekar

Publication date: 28 August 2013

Published in: Far East Journal of Mathematical Sciences (Search for Journal in Brave)

Full work available at URL: http://www.pphmj.com/abstract/7540.htm

zbMATH Keywords

Weyl's theoremgeneralized \(a\)-Weyl's theorem\(*\)-class \(A\) operators\(B\)-Weyl operators\(k\)-quasi-\(*\)-class \(A\) operator

Mathematics Subject Classification ID

Spectrum, resolvent (47A10) Subnormal operators, hyponormal operators, etc. (47B20) (Semi-) Fredholm operators; index theories (47A53)

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