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arXiv 1503.06392math.RA
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Hom-Lie-Yamaguti代数的表示和上同调及其应用

Representations and cohomologies of Hom-Lie-Yamaguti algebras with applications

Tao Zhang

摘要:

介绍了Hom-Lie-Yamaguti代数的表示和上同调理论。作为应用,我们研究了Hom-Lie-Yamaguti代数的变形与扩张。证明了Hom-Lie-Yamaguti代数$T$的1-参数无穷小变形对应于变形型Hom-Lie-Yamaguti代数和系数在伴随表示中的$T$的(2,3)-上圈.我们还证明了Hom-Lie-Yamaguti代数的交换扩张可以用(2,3)-上同调群来分类.

英文摘要:

The representation and cohomology theory of Hom-Lie-Yamaguti algebras is introduced. As an application, we study deformation and extension of Hom-Lie-Yamaguti algebras. It proved that a 1-parameter infinitesimal deformation of a Hom-Lie-Yamaguti algebra $T$ corresponds to a Hom-Lie-Yamaguti algebra of deformation type and a (2,3)-cocycle of $T$ with coefficients in the adjoint representation. We also prove that abelian extensions of Hom-Lie-Yamaguti algebras are classified by the (2,3)-cohomology group.

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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