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Ali Taghavi

Ali Taghavi

Academic rank: Professor
ORCID:
Education: PhD.
ScopusId:
HIndex:
Faculty: Faculty of Mathematical Sciences
Address: Department of Mathematics, Faculty of Mathematical Sciences, University of Mazandaran, Babolsar, Iran
Phone: 01135302460

Research

Title
Maps Preserving Strong 2-Jordan Product on Some Algebras
Type
JournalPaper
Keywords
Preserving problems; standard operator algebras; von Neumann algebra; strong k-Jordan product.
Year
2017
Journal Asian-European Journal of Mathematics
DOI
Researchers Ali Taghavi ، Farzaneh Kolivand

Abstract

A −→A be a surjective map between some operator algebras such that ψ(A) ◦2 ψ(B) = A◦2 B for all A,B ∈ A, where A◦2 B defined by A◦2 B = (A◦B)◦B and A◦B is Jordan product, i.e. A◦B = AB +BA. In this paper, we determine the concrete form of map ψ on some operator algebras. Such operator algebras include standard operator algebras, properly infinite von Neumann algebras and nest algebras. Particularly, if A is a factor von Neumann algebra that satisfies ψ(A) ◦2 ψ(P) = A ◦2 P for all A ∈ A and idempotents P ∈ A, then there exists nonzero scalar λ with λ3 = 1 such that ψ(A) = λA for all A ∈ A.