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arXiv 2104.08871math.RA
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$n$ -李代数的上同调与广义导子扩张

Cohomologies and generalized derivation extensions of $n$-Lie algebras

B. Ateşli, O. Esen, S. Sütlü

摘要:

引入了一个与$n$ -李代数及其表示空间相关的上同调理论。据观察,这种上同调理论是合格的编码广义导子扩展,它是一致的,$n=3$,与已知的$n$ -李代数的上同调。另一方面,$n$ -李代数的交换扩张和无穷小变形被证明是由$n$ -李代数通常的上同调所表征的。进一步,将李代数上同调的Hochschild-Serre谱序列提升到$n$ -李代数的水平,并应用于广义导子扩张的上同调.

英文摘要:

A cohomology theory, associated to a $n$-Lie algebra and a representation space of it, is introduced. It is observed that this cohomology theory is qualified to encode the generalized derivation extensions, and that it coincides, for $n=3$, with the known cohomology of $n$-Lie algebras. The abelian extensions and infinitesimal deformations of $n$-Lie algebras, on the other hand, are shown to be characterized by the usual cohomology of $n$-Lie algebras. Furthermore, the Hochschild-Serre spectral sequence of the Lie algebra cohomology is upgraded to the level of $n$-Lie algebras, and is applied to the cohomology of generalized derivation extensions.

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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