Derivations on ideals in commutative $AW^*$-algebras
Operator Algebras
2012-08-27 v3
Abstract
Let be a commutative -algebra, let be the *-algebra of all measurable operators affiliated with , let be an ideal in , let be the support of the ideal and let be a solid subspace in . The necessary and sufficient conditions of existence of non-zero band preserving derivations from to are given. We show that, in case when , or is a quasi-normed solid space, any band preserving derivation from into is always trivial. At the same time, there exist non-zero band preserving derivations from with values in , if and only if the Boolean algebra of all projections from the -algebra is not -distributive.
Keywords
Cite
@article{arxiv.1205.6083,
title = {Derivations on ideals in commutative $AW^*$-algebras},
author = {V. I. Chilin and G. B. Levitina},
journal= {arXiv preprint arXiv:1205.6083},
year = {2012}
}
Comments
22 pages