摘要

Let A and 8 be two factors. For A, B E A, define by A center dot B = AB + BA* the Jordan *-product of A and B. In this paper, it is proved that a not necessarily linear bijective map Phi : A -> B satisfies Phi(A center dot B center dot C) = Phi(A) center dot Phi(B) center dot Phi(C) for all A, B, C is an element of A if and only if Phi is a linear *-isomorphism, or a conjugate linear *-isomorphism, or the negative of a linear *-isomorphism, or the negative of a conjugate linear *-isomorphism.