A NOTE ON WEYL’S THEOREM FOR -PARANORMAL OPERATORS
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In this note we investigate Weyl's theorem for $\ast$-paranormal operators on a separable infinite dimensional Hilbert space. We prove that if $T$ is a $\ast$-paranormal operator satisfying Property (E) - $(T-\lambda I) H_T(\{\lambda\})$ is closed for each $\lambda\in\mathbb{C}$, where $H_T(\{\lambda\})$ is a local spectral subspace of $T$, then Weyl's theorem holds for $T$.
Abstract
In this note we investigate Weyl's theorem for $\ast$-paranormal operators on a separable infinite dimensional Hilbert space. We prove that if $T$ is a $\ast$-paranormal operator satisfying Property (E) - $(T-\lambda I) H_T(\{\lambda\})$ is closed for each $\lambda\in\mathbb{C}$, where $H_T(\{\lambda\})$ is a local spectral subspace of $T$, then Weyl's theorem holds for $T$.
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