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arXiv · 2507.00998

Brown-Halmos type characterization for the tetrablock

Shubham Jain·Surjit Kumar·Milan Kumar Mal·Paramita Pramanick
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Abstract

In this note, we obtain a Brown-Halmos type characterization for Toeplitz operators on the Hardy space associated with the tetrablock. As an application, we show that the zero operator is the only compact Toeplitz operator.

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Shubham Jain, Surjit Kumar, Milan Kumar Mal, Paramita Pramanick. 2025-07-01. Brown-Halmos type characterization for the tetrablock. https://arxiv.org/abs/2507.00998

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