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arXiv math/0510623math.COmath.RT
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树的主$Γ$ -锥

Principal $Γ$-cone for a tree

Kyoji Saito

摘要:

Dynkin图$Γ$上的每个方向定义了一个圆锥体(在某个真实的配置空间中),该圆锥体被进一步划分为腔室。我们列举了两个特定的锥,这是所谓的主$Γ$锥和附加到二分分解的$Γ$,通过使用钩长公式的腔室的数量。我们证明,这些principcone的特点是在他们的房间数的最大值。

英文摘要:

Each orientation on a Dynkin graph $Γ$ defines a cone (in a certain real configuration space) which is further divided into chambers. We enumerate the number of chambers for two particular cones, which are called the pricipal $Γ$-cones and are attached to bipartite decompositions of $Γ$, by a use of hook length formulae. We prove that these pricipal cones are characterized by the maximality of the number of chambers in them.

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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