English

Commutativity up to a factor for bounded and unbounded operators

Functional Analysis 2014-04-28 v2 Operator Algebras

Abstract

In this paper, we further investigate the problem of commutativity up to a factor (or λ\lambda-commutativity) in the setting of bounded and unbounded linear operators in a complex Hilbert space. The results are based on a new approach to the problem. We finish the paper by a conjecture on the commutativity of self-adjoint operators.

Keywords

Cite

@article{arxiv.1401.5917,
  title  = {Commutativity up to a factor for bounded and unbounded operators},
  author = {Chérifa Chellali and Mohammed Hichem Mortad},
  journal= {arXiv preprint arXiv:1401.5917},
  year   = {2014}
}

Comments

08 pages (to appear in Journal of Mathematical Analysis and Applications, Elsevier)

R2 v1 2026-06-22T02:52:57.652Z