Bulletin of the
Korean Mathematical Society BKMS

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Bull. Korean Math. Soc. 2001; 38(1): 163-174

Printed March 1, 2001

Copyright © The Korean Mathematical Society.

Weyl spectra of the $\chi$-class operators

Young Min Han and An-Hyun Kim

Sungkyunkwan University, Changwon National University

Abstract

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In this paper we introduce a notion of the $\chi$-class operators, which is a class including hyponormal operators and consider their spectral properties related to Weyl spectra.

Keywords: $\chi$-class operators, convexoid operators, commutators

MSC numbers: Primary 47A10, 47A53; Secondary 47B06, 47B07

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