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arXiv 1609.07005math.SG
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Hofer-Zehnder容量与Bruhat图

Hofer-Zehnder capacity and Bruhat graph

Alexander Caviedes Castro

摘要:

利用紧李群的Bruhat图的组合学,得到了紧李群关于Kostant-Kirillov-Souriau辛形式的余伴随轨道的Hofer-Zehnder容量的界.我们证明了我们的界对于酉群的余伴随轨道是尖锐的,并且等于加权Cayley图的直径。

英文摘要:

We find bounds for the Hofer-Zehnder capacity of coadjoint orbits of compact Lie groups with respect to the Kostant--Kirillov--Souriau symplectic form in terms of the combinatorics of their Bruhat graph. We show that our bounds are sharp for coadjoint orbits of the unitary group and equal to the diameter of a weighted Cayley graph.

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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