English

On normal, formally normal and quasinormal composition operators in $\ell^2$-spaces

Functional Analysis 2014-08-15 v1

Abstract

Unbounded composition operators in L2L^2-space over discrete measure spaces are investigated. Normal, formally normal and quasinormal composition operators acting in L2L^2-spaces of this kind are characterized.

Keywords

Cite

@article{arxiv.1408.3256,
  title  = {On normal, formally normal and quasinormal composition operators in $\ell^2$-spaces},
  author = {Piotr Budzynski},
  journal= {arXiv preprint arXiv:1408.3256},
  year   = {2014}
}
R2 v1 2026-06-22T05:28:49.963Z