Additive Lie (ξ-Lie) derivations and generalized Lie (ξ-Lie) derivations on nest algebras

Additive Lie (ξ-Lie) derivations and generalized Lie (ξ-Lie) derivations on nest algebras
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巢代数上的加法李 (Δ-Lie) 推导和广义李 (Δ-Lie) 推导

DOI:
10.1016/j.laa.2009.03.037
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发表时间:
2009-08
影响因子:
1.1
通讯作者:
Hou, Jinchuan
Hou, Jinchuan
中科院分区:
数学3区
文献类型:
--
作者:
Qi, Xiaofei;Hou, Jinchuan

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对于标量ξ,引入了(广义)ξ-Lie导子的概念,当ξ=1时,它与(广义)Lie导子的概念一致.给出了三角代数和标准算子子代数上加性(广义)ξ-Lie导子的一些刻画.在适当的假设下,证明了加性映射L是加性(广义)Lie导子当且仅当它是加性(广义)导子与从代数到其中心的所有交换子为零的加性映射之和;是具有ξ≠1的加性(广义)Lie导子当且仅当它是满足L(ξA)=ξL(A)的加性(广义)导子.
For a scalar ξ, a notion of (generalized) ξ-Lie derivations is introduced which coincides with the notion of (generalized) Lie derivations if ξ=1. Some characterizations of additive (generalized) ξ-Lie derivations on the triangular algebras and the standard operator subalgebras of Banach space nest algebras are given. It is shown, under some suitable assumption, that an additive map L is an additive (generalized) Lie derivation if and only if it is the sum of an additive (generalized) derivation and an additive map from the algebra into its center vanishing all commutators; is an additive (generalized) ξ-Lie derivation with ξ≠1 if and only if it is an additive (generalized) derivation satisfying L(ξA)=ξL(A) for all A.
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