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arXiv 0811.0400math.RAmath.QA
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Hom-代数与Hom-余代数

Hom-Algebras and Hom-Coalgebras

Abdenacer Makhlouf, Sergei Silvestrov

摘要:

本文的目的是发展Hom余代数及其相关结构的理论。在回顾了含扭导子的李代数的拟变形的一些关键构造和例子,并由此引出了包含Hom-李代数的拟李代数类之后,我们描述了Hom-代数的概念和一些性质,并给出了例子。引入了Hom-余代数结构,引出了Hom-双代数和Hom-霍普夫代数的概念,证明了一些基本性质,并给出了例子.最后,我们定义了Hom-Lie容许Hom-co代数的概念,并给出了它们基于对称群子群的分类.

英文摘要:

The aim of this paper is to develop the theory of Hom-coalgebras and related structures. After reviewing some key constructions and examples of quasi-deformations of Lie algebras involving twisted derivations and giving rise to the class of quasi-Lie algebras incorporating Hom-Lie algebras, we describe the notion and some properties of Hom-algebras and provide examples. We introduce Hom-coalgebra structures, leading to the notions of Hom-bialgebra and Hom-Hopf algebras and prove some fundamental properties and give examples. Finally, we define the concept of Hom-Lie admissible Hom-coalgebra and provide their classification based on subgroups of the symmetric group.

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