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<p>We discuss generalizations of the Szegő Limit Theorem to truncated Toeplitz operators. In particular, we consider compressions of Toeplitz operators to an increasing sequence of finite dimensional model spaces. We present two theorems. The first is a new variant of the Szegő Limit Theorem in this setting. The second relates to the variant given by Strouse–Timotin–Zarrabi (J Approx Theory 220:12–30, 2017), and characterizes the sequences for which that result holds.</p>

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Szegő Limit Theorem for Truncated Toeplitz Operators

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年2月1日

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  • Nazar Miheisi,
  • Ryan O’Loughlin

摘要

We discuss generalizations of the Szegő Limit Theorem to truncated Toeplitz operators. In particular, we consider compressions of Toeplitz operators to an increasing sequence of finite dimensional model spaces. We present two theorems. The first is a new variant of the Szegő Limit Theorem in this setting. The second relates to the variant given by Strouse–Timotin–Zarrabi (J Approx Theory 220:12–30, 2017), and characterizes the sequences for which that result holds.