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arXiv 0706.3282math.QAmath.RA
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辫子Hom-Lie双代数

Braided Hom-Lie bialgebras

Tao Zhang

摘要:

本文引入了辫子Hom-李双代数的概念,它是Sommerhäuser-Majid的辫子李双代数和Yau的Hom-李双代数的推广.利用这一概念,我们给出了Hom-Lie双代数的统一积的构造,它可以看作是Bespalov-Drabant上圈向量积双代数的Hom-Lie版本.研究了辫子Hom-Lie双代数的交叉积和匹配对等统一积的一些特殊情况。作为应用,我们利用非交换上同调理论解决了Hom-Lie双代数的Agore-Militaru扩张问题。此外,还研究了Hom-Lie双代数的一维旗扩张结构。

英文摘要:

We introduce the new concept of braided Hom-Lie bialgebras which is a generalization of Sommerhäuser-Majid's braided Lie bialgebras and Yau's Hom-Lie bialgebras. Using this concept we give the unified product construction for Hom-Lie bialgebras which can be seen as a Hom-Lie version of Bespalov-Drabant's cocycle cross product bialgebras. Some special cases of unified products such as crossed product and matched pair of braided Hom-Lie bialgebras are investigated. As an application, we solve the Agore-Militaru extending problem for Hom-Lie bialgebras by using some non-abelian cohomology theory. Furthermore, one dimensional flag extending structures for Hom-Lie bialgebras are also investigated.

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