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arXiv math/0006168math.DGmath.QA
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拟Poisson流形

Quasi-Poisson Manifolds

Anton Alekseev, Yvette Kosmann-Schwarzbach, Eckhard Meinrenken

摘要:

一个拟泊松流形是一个G-流形,它有一个不变的双向量场,其Schouten括号是由$\wedge^3 \g$中的不变元素与不变的内积生成的三向量场。我们引入这样的流形的融合的概念,我们与准泊松流形先前介绍的拟哈密顿流形与群值矩映射。

英文摘要:

A quasi-Poisson manifold is a G-manifold equipped with an invariant bivector field whose Schouten bracket is the trivector field generated by the invariant element in $\wedge^3 \g$ associated to an invariant inner product. We introduce the concept of the fusion for such manifolds, and we relate quasi-Poisson manifolds to the previously introduced quasi-Hamiltonian manifolds with group-valued moment maps.

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