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arXiv 1403.2144math-phmath.MPmath.RA
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Pre-Lie代数的范畴化与2阶经典Yang-Baxter方程的解

Categorification of Pre-Lie Algebras and Solutions of 2-graded Classical Yang-Baxter Equations

Yunhe Sheng

摘要:

在本文中,我们引入了预李2-代数的概念,它是预李代数的分类。证明了2-项pre-Lie $_\infty$ -代数范畴与2-项pre-Lie 2-代数范畴是等价的。利用准李代数的第三上同调对骨架准李2-代数进行了分类。证明了准李代数的交叉模与严格准李2-代数一一对应。在Lie 2-代数上引入了$\mathcal O$ -算子,它可以用来构造准Lie 2-代数.作为应用,我们给出了一类半直积李2-代数上的2-阶化经典Yang-Baxter方程的解。

英文摘要:

In this paper, we introduce the notion of a pre-Lie 2-algebra, which is a categorification of a pre-Lie algebra. We prove that the category of pre-Lie 2-algebras and the category of 2-term pre-Lie$_\infty$-algebras are equivalent. We classify skeletal pre-Lie 2-algebras by the third cohomology of a pre-Lie algebra. We prove that crossed modules of pre-Lie algebras are in one-to-one correspondence with strict pre-Lie 2-algebras. $\mathcal O$-operators on Lie 2-algebras are introduced, which can be used to construct pre-Lie 2-algebras. As an application, we give solutions of 2-graded classical Yang-Baxter equations in some semidirect product Lie 2-algebras.

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