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 Weyl spectra of the $\chi$-class operators Bull. Korean Math. Soc. 2001 Vol. 38, No. 1, 163-174 Young Min Han and An-Hyun Kim Sungkyunkwan University, Changwon National University Abstract : 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 Downloads: Full-text PDF