The strong degree of von Neumann algebras and the structure of Lie and Jordan derivations

The strong degree of von Neumann algebras and the structure of Lie and Jordan derivations
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DOI:
10.1017/s0305004104007789
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发表时间:
2004-09
影响因子:
0.8
通讯作者:
J. Alaminos;M. Brešar;A. Villena
J. Alaminos;M. Brešar;A. Villena
中科院分区:
数学2区
文献类型:
--
作者:
J. Alaminos;M. Brešar;A. Villena

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主要定理指出,从冯诺依曼代数 $\frak{A}$ 到任何 Banach $\frak{A}$ 双模的所有李和乔丹推导都是标准的。此外,这个命题对于其他一些代数类也得到了证明。我们的方法基于函数恒等式和强度的代数理论,并与分析工具相结合。
The main theorem states that all Lie and Jordan derivations from a von Neumann algebra $\frak{A}$ into any Banach $\frak{A}$-bimodule are standard. Moreover, this statement is proved for some other classes of algebras. Our approach is based on the algebraic theory of functional identities and the strong degree, and is combined with analytic tools.