COMPLEX SYMMETRY OF TOEPLITZ OPERATORS OVER THE BIDISK

  • Maofa Wang ,
  • Qi Wu ,
  • Kaikai Han
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  • 1. School of Mathematics and Statistics, Wuhan University, Wuhan 430072, China;
    2. School of Mathematics and Statistics, Hebei University of Economics and Business, Shijiazhuang 050061, China
Maofa Wang, E-mail: mfwang.math@whu.edu.cn; Qi Wu, E-mail: whuqwu@whu.edu.cn; Kaikai Han, E-mail: kkhan.math@whu.edu.cn

Received date: 2022-03-11

  Revised date: 2022-08-29

  Online published: 2023-08-08

Supported by

*Wang and Han's research was partially supported by the National Natural Science Foundation of China (11771340, 12101179, 12171373).

Abstract

In this paper, we investigate the complex symmetric structure of Toeplitz operators $T_\phi$ on the Hardy space over the bidisk. We first characterize the weighted composition operators, $W_{u,v}$ which are $\mathcal{J}$-symmetric and unitary. As a consequence, we characterize conjugations of the form $A_{u,v}$. In addition, a class of conjugations of the form $C_{\lambda, a}$ is introduced. We show that the class of conjugations $C_{\lambda, a}$ coincides with the class of conjugations $A_{u,v}$; we then characterize the complex symmetry of the Toeplitz operators $T_\phi$ with respect to the conjugation $C_{\lambda, a}$.

Cite this article

Maofa Wang , Qi Wu , Kaikai Han . COMPLEX SYMMETRY OF TOEPLITZ OPERATORS OVER THE BIDISK[J]. Acta mathematica scientia, Series B, 2023 , 43(4) : 1537 -1546 . DOI: 10.1007/s10473-023-0405-z

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