WIDTHS OF SUBGROUPS

WIDTHS OF SUBGROUPS
复制标题

DOI:
10.1090/s0002-9947-98-01792-9
复制
发表时间:
1998
影响因子:
1.3
通讯作者:
Rita Gitik;M. Mitra;E. Rips;M. Sageev
Rita Gitik;M. Mitra;E. Rips;M. Sageev
中科院分区:
数学1区
文献类型:
--
作者:
Rita Gitik;M. Mitra;E. Rips;M. Sageev

文献摘要

被引文献

相似文献

我们说G中的无限子群H的宽度是n,如果存在H的n个本质不同的共轭的集合,使得该集合的任何两个元素的交集是无限的,并且n是最大可能的。我们定义有限子群的宽度为0。证明了负曲群的拟凸子群具有有限宽度。因此,闭双曲三维流形中的几何有限曲面满足k-平面性质,对于某些k。
We say that the width of an infinite subgroup H in G is n if there exists a collection of n essentially distinct conjugates of H such that the intersection of any two elements of the collection is infinite and n is maximal possible. We define the width of a finite subgroup to be 0. We prove that a quasiconvex subgroup of a negatively curved group has finite width. It follows that geometrically finite surfaces in closed hyperbolic 3-manifolds satisfy the k-plane property for some k.