Peripheral Local Spectrum Preservers of Jordan Products of Operators

被引:0
|
作者
Sadeghi, Hossein [1 ]
Mirzapour, Farzollah [1 ]
机构
[1] Univ Zanjan, Fac Sci, Dept Math, POB 45195-313, Zanjan, Iran
来源
关键词
Jordan product; Peripheral spectrum; Nonlinear preserver maps; UNIFORM ALGEBRA ISOMORPHISMS; MAPS; SURJECTIONS; RADIUS;
D O I
10.1007/s41980-018-0029-6
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
We completely describe surjective maps preserving the peripheral local spectrum of Jordan product of operators. Let x(0) is an element of X and y(0) is an element of Y be two nonzero vectors. We show that a map phi from B(X) onto B(Y) satisfies gamma(ST)+TS(x(0)) = gamma phi(S)phi(T)+phi(T)phi(s)(Y-0), (T, S is an element of B(X)), if and only if there exists a bijective bounded linear map from X into Y such that A(x(0)) = y(0) and either phi(T) = -ATA(-1) for all T is an element of B(X) or phi(T) = AT A(-1) for all T is an element of B(X).
引用
收藏
页码:437 / 456
页数:20
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