Espace des modules de certains polyèdres projectifs miroirs

Espace des modules de certains polyèdres projectifs miroirs
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某些多面投影镜的模块空间

DOI:
10.1007/s10711-009-9438-2
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发表时间:
2008
影响因子:
0.5
通讯作者:
Ludovic Marquis
Ludovic Marquis
中科院分区:
数学4区
文献类型:
--
作者:
Ludovic Marquis

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投影镜像多面体是一个投影多面体,它的面上有反射。我们构造了一个显式的反同态之间的模空间的镜像投影多面体具有固定的二面角在$${(0,\frac {\pi}{2}]}$$,和联合的n个副本$${\mathbb{R}^{d}}$$,当多面体的组合学的一个ecimahedron,我们在这里介绍的无限类组合多面体。此外,整数n和d可以根据组合学和固定二面角明确计算。
A projective mirror polyhedron is a projective polyhedron endowed with reflections across its faces. We construct an explicit diffeomorphism between the moduli space of a mirror projective polyhedron with fixed dihedral angles in $${(0,\frac{\pi}{2}]}$$, and the union of n copies of $${\mathbb{R}^{d}}$$, when the polyhedron has the combinatorics of an ecimahedron, an infinite class of combinatorial polyhedra we introduce here. Moreover, the integers n and d can be computed explicitly in terms of the combinatorics and the fixed dihedral angles.