arXivDaily arXiv每日学术速递 周一至周五更新
arXiv math/0512561math.DG
收藏

Hadamard空间的无穷远填充不变量和欧氏秩

Filling invariants at infinity and the Euclidean rank of Hadamard spaces

Stefan Wenger

摘要:

在本文中,我们研究了由Brady和Farb定义的高维发散不变量的同调版本。我们证明了它们是Alexandrov意义下的真余紧Hadamard空间类中的拟等距不变量,并且它们还可以用来检测这种空间的欧氏秩。因此,我们将Brady-Farb,Leuzinger和Hindawi的结果从非紧型对称空间的情形推广到奇异Hadamard空间的情形。最后,我们展示了非紧型对称空间和具有严格负曲率上界的Hadamard空间的最佳幂增长的发散以上的秩。

英文摘要:

In this paper we study a homological version of the higher-dimensional divergence invariants defined by Brady and Farb. We show that they are quasi-isometry invariants in the class of proper cocompact Hadamard spaces in the sense of Alexandrov and that they can moreover be used to detect the Euclidean rank of such spaces. We thereby extend results of Brady-Farb, Leuzinger, and Hindawi from the setting of symmetric spaces of non-compact type to that of singular Hadamard spaces. Finally, we exhibit the optimal power for the growth of the divergence above the rank for symmetric spaces of non-compact type and for Hadamard spaces with strictly negative upper curvature bound.

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。

↑