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arXiv 1008.0106math.DGmath.SG
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Lichnerowicz上循环与中心李群扩张

Lichnerowicz cocycles and central Lie group extensions

Cornelia Vizman

摘要:

我们给出了体积保持微分同胚群的覆叠群的中心扩张的尺规作图法,积分了由Lichnerowicz上循环定义的无发散向量场的李代数的中心扩张。在这些李群扩张中,非线性格拉斯曼算子的某些覆盖空间可以实现为可预量化的余伴轨道。

英文摘要:

We present a geometric construction of central extensions of covering groups of the group of volume preserving diffeomorphisms, integrating central extensions of the Lie algebra of divergence free vector fields defined by Lichnerowicz cocycles. Certain covering spaces of non-linear Grassmannians can be realized as prequantizable coadjoint orbits in these Lie group extensions.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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