English

Invertibility of functions of operators and existence of hyperinvariant subspaces

Functional Analysis 2019-12-17 v2

Abstract

Let TT be an absolutely continuous polynomially bounded operator, and let θ\theta be a singular inner function. It is shown that if θ(T)\theta(T) is invertible and some additional conditions are fulfilled, then TT has nontrivial hyperinvariant subspaces.

Keywords

Cite

@article{arxiv.1812.03517,
  title  = {Invertibility of functions of operators and existence of hyperinvariant subspaces},
  author = {Maria F. Gamal'},
  journal= {arXiv preprint arXiv:1812.03517},
  year   = {2019}
}

Comments

Many inaccuracies and misprints are corrected by the referee