On the shape of fundamental domains in GL(n,R)∕O(n)

On the shape of fundamental domains in GL(n,R)∕O(n)
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关于 GL(n,R)∕O(n) 中基本域的形状

DOI:
10.2140/pjm.1993.160.53
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发表时间:
1993
影响因子:
0.6
通讯作者:
Douglas Grenier
Douglas Grenier
中科院分区:
数学4区
文献类型:
--
作者:
Douglas Grenier

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研究对称空间H=G/K, G=GL(n, R), K=O(n)在正定二次型意义上的参数。这导致了对基本域H/Γ的描述,其中Γ是g的算术子群。我们还看到了与西格尔集的有趣关系。这使我们能够明确地描述H/Γ的Satake紧化。我们还将考虑基本域“底部”的行为
We investigate parameters for the symmetric space H=G/K, G=GL(n, R), K=O(n), in the sense of positive definite quadratic forms. This leads to a description for the fundamental domain H/Γ where Γ is an arithmetic subgroup of G. We also see interesting relations with the Siegel sets. This enables us to explicitly describe Satake compactifications of H/Γ. We will also consider the behavior at the «bottom» of the fundamental domains