English

Quasinormal and hyponormal weighted composition operators on $H^2$ and $A^2_{\alpha}$ with linear fractional compositional symbol

Functional Analysis 2017-05-17 v1 Complex Variables

Abstract

In this paper, we study quasinormal and hyponormal composition operators \W with linear fractional compositional symbol \ph\ph on the Hardy and weighted Bergman spaces. We characterize the quasinormal composition operators induced on H2H^{2} and Aα2A_{\alpha}^{2} by these maps and many such weighted composition operators, showing that they are necessarily normal in all known cases. We eliminate several possibilities for hyponormal weighted composition operators but also give new examples of hyponormal weighted composition operators on H2H^2 which are not quasinormal.

Keywords

Cite

@article{arxiv.1602.04218,
  title  = {Quasinormal and hyponormal weighted composition operators on $H^2$ and $A^2_{\alpha}$ with linear fractional compositional symbol},
  author = {Mahsa Fatehi and Mahmood Haji Shaabani and Derek Thompson},
  journal= {arXiv preprint arXiv:1602.04218},
  year   = {2017}
}

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11 pages