arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1204.0682math.GT
收藏

树分次渐近锥面

Tree-graded asymptotic cones

Alessandro Sisto

摘要:

本文研究了树分次空间的bilipschitz等价型,证明了相对双曲群的渐近锥面(分别是包含一个截点的群的渐近锥面)只依赖于标准中的块的bilipschitz等价类型(分别是最小)树分级结构。特别地,许多相对双曲群的渐近锥面不依赖于比例因子。我们还描述了渐近锥面如上“明确”。部分结果是由D. Osin和M.萨皮尔

英文摘要:

We study the bilipschitz equivalence type of tree-graded spaces, showing that asymptotic cones of relatively hyperbolic groups (resp. asymptotic cones of groups containing a cut-point) only depend on the bilipschitz equivalence types of the pieces in the standard (resp. minimal) tree-graded structure. In particular, the asymptotic cones of many relatively hyperbolic groups do not depend on the scaling factor. We also describe the asymptotic cones as above "explicitly". Part of these results were obtained independently and simultaneously by D. Osin and M. Sapir.

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。

↑