Communications of the
Korean Mathematical Society CKMS

ISSN(Print) 1225-1763 ISSN(Online) 2234-3024
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Commun. Korean Math. Soc. 2001; 16(2): 235-241

Printed June 1, 2001

Copyright © The Korean Mathematical Society.

On the Joint Weyl and Browder Spectra of Hyponormal Operators

Young-Yoon Lee

Sangmyung University

Abstract

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In this paper we study some properties of the joint Weyl and Browder spectra for the slightly larger classes containing doubly commuting $n$-tuples of hyponor\-mal operators.

Keywords: hyponormal operator, $M$-hyponormal operators, $p$,hyponormal operator, joint Weyl spectrum, joint Browder spectrum

MSC numbers: 47A10, 47A13, 47A53, 47B20

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