English

Berezin transform and Toeplitz operators on weighted Bergman spaces induced by regular weights

Functional Analysis 2016-07-18 v1 Complex Variables

Abstract

Given a regular weight ω\omega and a positive Borel measure μ\mu on the unit disc D\mathbb{D}, the Toeplitz operator associated with μ\mu is Tμ(f)(z)=Df(ζ)Bzω(ζ)ˉdμ(ζ), \mathcal{T}_\mu(f)(z)=\int_{\mathbb{D}} f(\zeta)\bar{B_z^\omega(\zeta)}\,d\mu(\zeta), where BzωB^\omega_{z} are the reproducing kernels of the weighted Bergman space Aω2A^2_\omega. We describe bounded and compact Toeplitz operators Tμ:AωpAωq\mathcal{T}_\mu:A^p_\omega\to A^q_\omega, 1<q,p<1<q,p<\infty, in terms of Carleson measures and the Berezin transform Tμ~(z)=Tμ(Bzω),BzωAω2BzωAω22. \widetilde{\mathcal{T}_\mu}(z)=\frac{\langle\mathcal{T}_\mu(B^\omega_{z}), B^\omega_{z} \rangle_{A^2_\omega}}{\|B_z^\omega\|^2_{A^2_\omega}}. We also characterize Schatten class Toeplitz operators in terms of the Berezin transform and apply this result to study Schatten class composition operators.

Keywords

Cite

@article{arxiv.1607.04394,
  title  = {Berezin transform and Toeplitz operators on weighted Bergman spaces induced by regular weights},
  author = {José Ángel Peláez and Jouni Rättyä and Kian Sierra},
  journal= {arXiv preprint arXiv:1607.04394},
  year   = {2016}
}
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