English

A class of Berezin-type operators on weighted Fock spaces with $A_{\infty}$-type weights

Functional Analysis 2024-09-04 v1

Abstract

Let 0<α,β,t<0<\alpha,\beta,t<\infty and μ\mu be a positive Borel measure on Cn\mathbb{C}^n. We consider the Berezin-type operator Sμt,α,βS^{t,\alpha,\beta}_{\mu} defined by Sμt,α,βf(z):=(Cneβ2zu2f(u)teαt2u2dμ(u))1/t,zCn.S^{t,\alpha,\beta}_{\mu}f(z):=\left(\int_{\mathbb{C}^n}e^{-\frac{\beta}{2}|z-u|^2}|f(u)|^te^{-\frac{\alpha t}{2}|u|^2}d\mu(u)\right)^{1/t},\quad z\in\mathbb{C}^n. We completely characterize the boundedness and compactness of Sμt,α,βS^{t,\alpha,\beta}_{\mu} from the weighted Fock space Fα,wpF^p_{\alpha,w} into the Lebesgue space Lq(wdv)L^q(wdv) for all possible indices, where ww is a weight on Cn\mathbb{C}^n that satisfies an AA_{\infty}-type condition. This solves an open problem raised by Zhou, Zhao and Tang [Banach J. Math. Anal. 18 (2024), Paper No. 20]. As an application, we obtain the description of the boundedness and compactness of Toeplitz-type operators acting between weighted Fock spaces induced by AA_{\infty}-type weights.

Keywords

Cite

@article{arxiv.2409.01132,
  title  = {A class of Berezin-type operators on weighted Fock spaces with $A_{\infty}$-type weights},
  author = {Jiale Chen},
  journal= {arXiv preprint arXiv:2409.01132},
  year   = {2024}
}

Comments

23 pages