Simple compactifications and polar decomposition of homogeneous real spherical spaces

Simple compactifications and polar decomposition of homogeneous real spherical spaces
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齐次实球空间的简单紧化和极分解

DOI:
10.1007/s00029-014-0174-6
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发表时间:
2014
期刊:
Selecta Mathematica
影响因子:
--
通讯作者:
H. Schlichtkrull
H. Schlichtkrull
中科院分区:
--
文献类型:
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作者:
F. Knop;Bernhard Krötz;E. Sayag;H. Schlichtkrull

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设一个附于实约李群的代数齐次空间。我们假设它是实球形的,即最小抛物子群上有开轨道。对于这样的空间,我们研究了它们的大尺度几何,并给出了极坐标分解。这是由本文建立的简单紧化的存在性得到的。
Letbe an algebraic homogeneous spaceattached to real reductive Lie group. We assume thatis real spherical, i.e., minimal parabolic subgroups have open orbits on. For such spaces, we investigate their large scale geometry and provide a polar decomposition. This is obtained from the existence of simple compactifications ofwhich is established in this paper.