English

Composition Operators On De Branges-rovnyak Spaces Associated To A Rational (Not Inner) Function

Functional Analysis 2022-11-10 v1

Abstract

In this paper, we characterize the boundedness, the compactness and the Hilbert-Schmidt property for composition operators acting from a de Branges-Rovnyak space H(b)\mathcal H(b) into itself, when bb is a rational function in the closed unit ball of HH^\infty (but not a finite Blaschke product). In particular, we extend some of the results obtained by D. Sarason and J.N. Silva in the context of local Dirichlet spaces.

Keywords

Cite

@article{arxiv.2211.04864,
  title  = {Composition Operators On De Branges-rovnyak Spaces Associated To A Rational (Not Inner) Function},
  author = {Rim Alhajj and Emmanuel Fricain},
  journal= {arXiv preprint arXiv:2211.04864},
  year   = {2022}
}
R2 v1 2026-06-28T05:30:37.637Z