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arXiv 1901.03087math.RA
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关于Hom-李反代数

On Hom-Lie antialgebra

Tao Zhang, Heyu Zhang

摘要:

本文引入了Hom-Lie反代数的概念。研究了Hom-Lie反代数的表示和上同调理论。证明了Hom-Lie反代数的交换扩张的等价类与第二上同调群的元素一一对应。证明了Hom-Lie反代数的1-参数无穷小变形是由该Hom-Lie反代数的2-上圈刻画的,其自身具有伴随表示.引入了Hom-Lie反代数的Nijenhuis算子来描述平凡变形。

英文摘要:

In this paper, we introduced the notion of Hom-Lie antialgebras. The representations and cohomology theory of Hom-Lie antialgebras are investigated. We prove that the equivalent classes of abelian extensions of Hom-Lie antialgebras are in one-to-one correspondence to elements of the second cohomology group. We also prove that 1-parameter infinitesimal deformation of a Hom-Lie antialgebra are characterized by 2-cocycles of this Hom-Lie antialgebra with adjoint representation in itself. The notion of Nijenhuis operators of Hom-Lie antialgebra is introduced to describe trivial deformations.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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