Weyl's theorems and continuity of spectra in the class of p-hyponormal operators

• Autorzy: S. V. Djordjević , B. P. Duggal
• Języki publikacji: EN

Abstrakty

EN

We show that p-hyponormal operators obey Weyl's and a-Weyl's theorem. Also, we show that the spectrum, Weyl spectrum, Browder spectrum and approximate point spectrum are continuous functions in the class of all p-hyponormal operators.

Słowa kluczowe

EN

p-hyponormal operators; Weyl's theorem; continuity of spectra

• Wydawca: Institute of Mathematics Polish Academy of Sciences
• Czasopismo: Studia Mathematica
• Rocznik: 2000
• Tom: 143
• Numer: 1
• Strony: 23-32

Daty

wydano

2000

otrzymano

1998-11-03

poprawiono

1999-04-21

Twórcy

autor

S. V. Djordjević

• Department of Mathematics, Faculty of Science, University of Niš, Ćirila i Metodija 2, 18000 Niš, Yugoslavia

autor

B. P. Duggal

• Mathematics Department, College of Science, United Arab Emirates University, P.O. Box 17551, Al Ain, Arab Emirates

Bibliografia

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