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On unitary equivalence and reducing subspaces of analytic Toeplitz operator on vector-valued Hardy space

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arxiv 2409.07112 v1 pith:EDRYABCN submitted 2024-09-11 math.FA

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keywords mathbbhardyspaceactingoperatorreducingsubspacesanalytic
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abstract

In this paper, we proved that $T_{z^n}$ acting on the $\mathbb{C}^m$-valued Hardy space $H_{\mathbb{C}^m}^2(\mathbb{D})$, is unitarily equivalent to $\bigoplus_1^{mn}T_z$, where $T_z$ is acting on the scalar-valued Hardy space $H_{\mathbb{C}}^2(\mathbb{D})$. And using the matrix manipulations combined with operator theory methods, we completely describe the reducing subspaces of $T_{z^n}$ on $H_{\mathbb{C}^m}^2(\mathbb{D})$.

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