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Manin三元组对李可归复形代数的分类

Classification des triples de Manin pour les algèbres de Lie réductives complexes

Patrick Delorme

摘要:

研究了复约化李代数$\g$的实Manin三元组和复Manin三元组.第一部分包括,并扩展到复杂的Manin三倍,我们的早期工作[德]。首先,我们推广了E. Karolinsky,关于拉格朗日子代数的分类(参见。[K1],[K3])。然后证明了,如果$\g$是非交换的,则$\g$的严格较小的约化复李子代数可以在$\g$的每个Manin三元组上附加另一个Manin三元组.这为归纳提供了一个强有力的工具。然后,我们分类复杂的Manin三元组,我们称之为广义Belavin-Drinfeld数据。特别地,这通过其他方法推广了A. Belavin和G. Drinfeld的某些$R$ -矩阵,即修改的三角方程的常数的解决方案(参见[BD],定理6.1)。我们也得到了真正的Manin三元组的结果。在传递过程中,检索到A的结果。Panov [P1]对实单李代数上的某些李双代数结构进行了分类。

英文摘要:

We study real and complex Manin triples for a complex reductive Lie algebra, $\g$. The first part includes, and extends to complex Manin triples, our earlier work [De]. First, we generalize results of E. Karolinsky, on the classification of Lagrangian subalgebras (cf.[K1], [K3]). Then we show that, if $\g$ is non commutative, one can attach, to each Manin triple in $\g$, another one for a strictly smaller reductive complex Lie subalgebra of $\g$. This gives a powerful tool for induction. Then we classify complex Manin triples, in terms of what we call generalized Belavin-Drinfeld data. In particular this generalizes, by other methods, the classification of A. Belavin and G. Drinfeld of certain $R$-matrices, i.e. the solutions of modified triangle equations for constants (cf [BD], Theorem 6.1). We get also results for real Manin triples. In passing, one retrieves a result of A. Panov [P1] which classifies certain Lie bialgebras structures on a real simple Lie algebra.

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