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arXiv 2311.08985math.RA
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完美李代数的后李代数结构

Post-Lie algebra structures for perfect Lie algebras

Dietrich Burde, Karel Dekimpe, Mina Monadjem

AI总结:

本文研究完美李代数对上的后李代数结构存在性,证明多种情形下不存在,并给出部分存在例子。

摘要:

我们研究李代数对 $(\mathfrak{g},\mathfrak{n})$ 上后李代数结构的存在性,其中两个代数之一为完美非半单的,另一个为阿贝尔的、非阿贝尔幂零的、非幂零可解的、单的、非单半单的、非半单约化的或非完美完备的。我们证明了若干不存在性结果,但也提供了一些情形下后李代数结构存在的例子。在其他结果中,我们证明了当 $\mathfrak{g}$ 为完美非半单且 $\mathfrak{n}$ 为 $\mathfrak{sl}_3(\mathbb{C})$ 时,$(\mathfrak{g},\mathfrak{n})$ 上不存在后李代数结构。我们还证明了当 $\mathfrak{g}$ 为完美且 $\mathfrak{n}$ 为具有 $1$ 维中心的约化李代数时,$(\mathfrak{g},\mathfrak{n})$ 上不存在后李代数结构。

英文摘要:

We study the existence of post-Lie algebra structures on pairs of Lie algebras $(\mathfrak{g},\mathfrak{n})$, where one of the algebras is perfect non-semisimple, and the other one is abelian, nilpotent non-abelian, solvable non-nilpotent, simple, semisimple non-simple, reductive non-semisimple or complete non-perfect. We prove several non-existence results, but also provide examples in some cases for the existence of a post-Lie algebra structure. Among other results we show that there is no post-Lie algebra structure on $(\mathfrak{g},\mathfrak{n})$, where $\mathfrak{g}$ is perfect non-semisimple, and $\mathfrak{n}$ is $\mathfrak{sl}_3(\mathbb{C})$. We also show that there is no post-Lie algebra structure on $(\mathfrak{g},\mathfrak{n})$, where $\mathfrak{g}$ is perfect and $\mathfrak{n}$ is reductive with a $1$-dimensional center.

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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