English

Local derivations on measurable operators and commutativity

Operator Algebras 2017-01-10 v1

Abstract

We prove that a von Neumann algebra MM is abelian if and only if the square of every derivation on the algebra S(M)S(M) of measurable operators, affiliated with MM, is a local derivation. We also show that for general associative unital algebras this is not true.

Keywords

Cite

@article{arxiv.1604.07147,
  title  = {Local derivations on measurable operators and commutativity},
  author = {Shavkat Ayupov and Karimbergen Kudaybergenov},
  journal= {arXiv preprint arXiv:1604.07147},
  year   = {2017}
}

Comments

8 pages. arXiv admin note: text overlap with arXiv:1602.04959

R2 v1 2026-06-22T13:39:50.137Z