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arXiv · 2302.00896

Conditions implying the normality of $\ast$-paranormal operators in the closure of $\mathcal{AN}$-operators

G. Ramesh·Shanola S. Sequeira
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Abstract

In this article, we first prove the existence of an invariant subspace for a norm-attaining $\ast$-paranormal operator. Then give a representation for $\ast$-paranormal operators in the closure of absolutely norm-attaining operators and further study a few sufficient conditions for the normality of such operators. Finally, we discuss Toeplitz and Hankel $\ast$-paranormal operators in the closure of absolutely norm-attaining operators on the Hardy space.

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G. Ramesh, Shanola S. Sequeira. 2023-02-02. Conditions implying the normality of $\ast$-paranormal operators in the closure of $\mathcal{AN}$-operators. https://arxiv.org/abs/2302.00896

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