English

Hausdorff operators on Fock Spaces

Functional Analysis 2021-01-20 v2

Abstract

Let μ\mu be a positive Borel measure on the positive real axis. We study the integral operator Hμ(f)(z)=01tf(zt)dμ(t),zC, \mathcal{H}_{\mu}(f)(z)=\int_{0}^{\infty}\frac{1}{t}f\left(\frac{z}{t}\right)\,d\mu(t),\quad z\in \mathbb{C}\,, acting on the Fock spaces FαpF^{p}_{\alpha}, p[1,],α>0p\in [1,\infty],\,\alpha >0. Its action is easily seen to be a coefficient multiplication by the moment sequence μn=11tn+1dμ(t). \mu_n= \int_{1}^{\infty}\frac{1}{t^{n+1}}\,d\mu(t) . We prove that \begin{equation*} ||\mathcal{H}_{\mu}||_{F^{p}_{\alpha}\to F^{p}_{\alpha}}=\sup_{n\in\mathbb{N}}\mu_n,\,\,\,\,\,1\leq p\leq \infty\,\,. \end{equation*} A little-o,condition describes the compactness of Hμ\mathcal{H}_{\mu} on every Fαp,p(1,)F^{p}_{\alpha},\,p\in (1,\infty ). In addition, we completely characterize the Schatten class membership of Hμ\mathcal{H}_{\mu}.

Keywords

Cite

@article{arxiv.2008.06684,
  title  = {Hausdorff operators on Fock Spaces},
  author = {Petros Galanopoulos and Georgios Stylogiannis},
  journal= {arXiv preprint arXiv:2008.06684},
  year   = {2021}
}

Comments

14 pages

R2 v1 2026-06-23T17:52:38.622Z