Open AccessNonlinear maps preserving the mixed product [A ● B,C]* on von Neumann algebras
Author(s) -
Changjing Li,
Yuanyuan Zhao,
Fangfang Zhao
Publication year - 2021
Publication title -
filomat
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.449
H-Index - 34
eISSN - 2406-0933
pISSN - 0354-5180
DOI - 10.2298/fil2108775l
Subject(s) - bijection , mathematics , isomorphism (crystallography) , conjugate , von neumann algebra , abelian group , abelian von neumann algebra , von neumann architecture , combinatorics , pure mathematics , linear map , algebra over a field , jordan algebra , mathematical analysis , algebra representation , chemistry , crystal structure , crystallography
Let A and B be two von Neumann algebras. For A,B ? A, define by [A,B]* = AB-BA* and A ? B = AB + BA* the new products of A and B. Suppose that a bijective map ? : A ? B satisfies ?([A ? B,C]*) = [?(A)? ?(B),?(C)]* for all A,B,C ? A. In this paper, it is proved that if A and B be two von Neumann algebras with no central abelian projections, then the map ?(I)? is a sum of a linear *-isomorphism and a conjugate linear +-isomorphism, where ?(I) is a self-adjoint central element in B with ?(I)2 = I. If A and B are two factor von Neumann algebras, then ? is a linear *-isomorphism, or a conjugate linear *-isomorphism, or the negative of a linear *-isomorphism, or the negative of a conjugate linear *-isomorphism.