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Estimating Dixmier traces of Hankel operators in Lorentz ideals
Journal of Functional Analysis ( IF 1.7 ) Pub Date : 2020-10-01 , DOI: 10.1016/j.jfa.2020.108688
Magnus Goffeng , Alexandr Usachev

In this paper we study Dixmier traces of powers of Hankel operators in Lorentz ideals. We extend results of Engli\v{s}-Zhang to the case of powers $p\geq 1$ and general Lorentz ideals starting from abstract extrapolation results of Gayral-Sukochev. In the special case $p=2,4,6$ we give an exact formula for the Dixmier trace. For general $p$, we give upper and lower bounds on the Dixmier trace. We also construct, for any $p$ and any Lorentz ideal, examples of non-measurable Hankel operators.

中文翻译:

估计 Lorentz 理想中 Hankel 算子的 Dixmier 迹

在本文中,我们研究了 Lorentz 理想中 Hankel 算子幂的 Dixmier 迹。我们从 Gayral-Sukochev 的抽象外推结果开始,将 Engli\v{s}-Zhang 的结果扩展到幂 $p\geq 1$ 和一般洛伦兹理想的情况。在特殊情况 $p=2,4,6$ 中,我们给出了 Dixmier 迹线的精确公式。对于一般的 $p$,我们给出 Dixmier 迹线的上限和下限。我们还为任何 $p$ 和任何洛伦兹理想构造了不可测 Hankel 算子的示例。
更新日期:2020-10-01
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