Bounded, compact and Schatten class Hankel operators on Fock-type spaces

Zeng, Zhicheng; Hu, Zhangjian; Wang, Xiaofeng

doi:10.1090/tran/9290

Bounded, compact and Schatten class Hankel operators on Fock-type spaces
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by Zhicheng Zeng, Zhangjian Hu and Xiaofeng Wang;

Trans. Amer. Math. Soc. 378 (2025), 805-849

DOI: https://doi.org/10.1090/tran/9290

Published electronically: December 13, 2024

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Abstract:

In this paper, we consider Hankel operators, with locally integrable symbols, densely defined on a family of Fock-type spaces whose weights are $C^3$-logarithmic growth functions with mild smoothness conditions. It is shown that a Hankel operator is bounded on such a Fock space if and only if its symbol function has bounded distance to analytic functions BDA which is initiated by Luecking [J. Funct. Anal. 110 (1992), pp. 247–271]. We also characterize the compactness and Schatten class membership of Hankel operators. Besides, we give characterizations of the Schatten class membership of Toeplitz operators with positive measure symbols for the small exponent $0<p<1$. Our proofs depend strongly on the technique of Hömander’s $L^2$ estimates for the $\overline {\partial }$ operator and the decomposition theory of BDA spaces as well as integral estimates involving the reproducing kernel.

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