English

Nonlinear maps preserving the mixed Jordan triple $\eta$-$*$-product between factors

Operator Algebras 2020-07-08 v1

Abstract

Let A\mathcal{A} and B\mathcal{B} be two factor von Neumann algebras and η\eta be a non-zero complex number. A nonlinear bijective map ϕ:AB\phi:\mathcal A\rightarrow\mathcal B has been demonstrated to satisfy ϕ([A,B]ηηC)=[ϕ(A),ϕ(B)]ηηϕ(C)\phi([A,B]_{*}^{\eta}\diamond_{\eta} C)=[\phi(A),\phi(B)]_{*}^{\eta}\diamond_{\eta}\phi(C) for all A,B,CA.A,B,C\in\mathcal A. If η=1,\eta=1, then ϕ\phi is a linear *-isomorphism, a conjugate linear *-isomorphism, the negative of a linear *-isomorphism, or the negative of a conjugate linear *-isomorphism. If η1\eta\neq 1 and satisfies ϕ(I)=1,\phi(I)=1, then ϕ\phi is either a linear *-isomorphism or a conjugate linear *-isomorphism.

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Cite

@article{arxiv.2007.03247,
  title  = {Nonlinear maps preserving the mixed Jordan triple $\eta$-$*$-product between factors},
  author = {Fangjuan Zhang},
  journal= {arXiv preprint arXiv:2007.03247},
  year   = {2020}
}

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21 pages