East Asian mathematical journal

The Youngnam Mathematical Society (영남수학회)
권호 표지

A NOTE ON THE ESSENTIAL SPECTRUM OF AN IRREDUCIBLE P-HYPONORMAL OPERATOR

  • Published : 2001.06.25
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Abstract

In this paper, we have the extended result of Bunce's theorem. And we show that if T is an irreducible p-hyponormal operator such that T*T-TT* is compact, then ${\sigma}_{ap}(T)={\sigma}_e(T)$ and ${\sigma}_p({\phi}(T))={\sigma}_e({\phi}(T))$.

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