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B(H)上的广义零点Lie可导映射
引用本文:陈琳.B(H)上的广义零点Lie可导映射[J].安顺师范高等专科学校学报,2010(5):80-82.
作者姓名:陈琳
作者单位:安顺学院数学与计算机科学系,贵州安顺561000
摘    要:设B(H)是维数大于2的复可分Hilbert空间,B(H)代表H上所有有界线性算子全体,假设线性映射Ф:B(H)→B(H)满足对所有A,B∈B(H),A^A.,B]=0时,有Ф(A)^Ф(A).,B]+A^A.,Ф(B)]=0.文中运用可交换迹双线性映射对Ф进行了刻画,证明了存在实数c∈R,算子T∈B(H)且T^*+T=cI,使得对任意X∈B(H),有Ф(X)=XT+T^*X.

关 键 词:广义Lie可导映射  Lie积  套代数  迹双线性映射

Generalized Lie Derivable Maps at Zero of B(H)
Chen Lin.Generalized Lie Derivable Maps at Zero of B(H)[J].Journal of Anshun Teachers College,2010(5):80-82.
Authors:Chen Lin
Institution:Chen Lin (Department of Mathematics and Computer Science of Anshun College ;Anshun 56000,Guizhou,China)
Abstract:Let H be a complex Hilbert space with dim H〉 2. B(H) denotes the set of all bounded linear operator on H, SupposeФ. B (H) → B (H) is a linear mapping satisfying Ф(A)^Ф(A).,B]+A^A.,Ф(B)]=0 whenever A^A.,B]=0 for all A,B∈B(H) ,In this paper we apply trace bilinear mapping to characterize Ф and prove that there exists c ∈ R,T∈ B(H) and T+T^* = cI, such that Ф(X)= XT+T^* X for every X ∈ B (H).
Keywords:Lie derivable mapping  Lie product  Nest algebra  Trace of bilinear map
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