English

Characterizing linear mappings through zero products or zero Jordan products

Operator Algebras 2020-08-25 v3

Abstract

Let A\mathcal{A} be a *-algebra and M\mathcal{M} be a *-A\mathcal A-bimodule, we study the local properties of *-derivations and *-Jordan derivations from A\mathcal{A} into M\mathcal{M} under the following orthogonality conditions on elements in A\mathcal A: ab=0ab^*=0, ab+ba=0ab^*+b^*a=0 and ab=ba=0ab^*=b^*a=0. We characterize the mappings on zero product determined algebras and zero Jordan product determined algebras. Moreover, we give some applications on CC^*-algebras, group algebra, matrix algebras, algebras of locally measurable operators and von Neumann algebras.

Keywords

Cite

@article{arxiv.1907.03940,
  title  = {Characterizing linear mappings through zero products or zero Jordan products},
  author = {Guangyu An and Jun He and Jiankui Li},
  journal= {arXiv preprint arXiv:1907.03940},
  year   = {2020}
}
R2 v1 2026-06-23T10:15:36.099Z