2025/12/5
Hoger Ghahramani

Hoger Ghahramani

Academic rank: Professor
ORCID:
Education: PhD.
H-Index:
Faculty: Faculty of Science
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E-mail: h.ghahramani [at] uok.ac.ir
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Research

Title
Additive mappings on von Neumann algebras acting as Lie triple centralizer via local actions and related mappings
Type
JournalPaper
Keywords
Von Neumann algebra, Lie triple centralizer, Lie centralizer, Generalized Lie triple derivation, Generalized Lie derivation, Jordan centralizer, Jordan generalized derivation.
Year
2025
Journal Acta Scientiarum Mathematicarum
DOI
Researchers Behrooz Fadaee ، Hoger Ghahramani

Abstract

Let M be an arbitrary von Neumann algebra, and φ : M → M be an additive map. We show that φ satisfies φ([[A, B], C]) = [[φ(A), B], C] = [[A, φ(B)], C] for all A, B, C ∈ M with AB = 0 if and only if φ(A) = W A + ξ(A) for any A ∈ M, where W ∈ Z(M) and ξ : M → Z(M) is an additive mapping such that ξ([[A, B], C]) = 0 for any A, B, C ∈ M with AB = 0. Then we present various applications of this result to determine other types of additive mappings on von Neumann algebras such as Lie triple centralizers, Lie centralizers, generalized Lie triple derivations at zero products, generalized Lie derivations, Jordan centralizers and Jordan generalized derivations. Some of our results are generalizations of some previously known results.