English

Bounded symbols and reproducing kernel thesis for truncated Toeplitz operators

Functional Analysis 2009-11-14 v2

Abstract

Compressions of Toeplitz operators to coinvariant subspaces of H2H^2 are called truncated Toeplitz operators. We study two questions related to these operators. The first, raised by Sarason, is whether boundedness of the operator implies the existence of a bounded symbol; the second is the reproducing kernel thesis. We show that in general the answer to the first question is negative, and we exhibit some classes of spaces for which the answers to both questions are positive.

Keywords

Cite

@article{arxiv.0909.0131,
  title  = {Bounded symbols and reproducing kernel thesis for truncated Toeplitz operators},
  author = {A. Baranov and Isabelle Chalendar and Emmanuel Fricain and Javad Mashreghi and Dan Timotin},
  journal= {arXiv preprint arXiv:0909.0131},
  year   = {2009}
}

Comments

Version 2 (33 pages)

R2 v1 2026-06-21T13:41:03.548Z