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arXiv 0901.0056math.GTmath.GR
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双曲流形的CAT(0)和CAT(-1)填充

CAT(0) and CAT(-1) fillings of hyperbolic manifolds

Koji Fujiwara, Jason Fox Manning

摘要:

我们给新的例子双曲和相对双曲群的上同调维数$d$的所有$d\geq 4$。这些例子是将CAT $(0)$ /CAT $(-1)$填充构造(基于奇异双翘曲积)应用于具有toral尖点的有限体积双曲流形的结果。得到的群有一些有趣的性质,这些性质是通过分析它们在无穷远处的边界而建立的,这些边界是由一种莫尔斯理论技术建立的,这种技术与普通的和组合的莫尔斯理论有关但又不同。

英文摘要:

We give new examples of hyperbolic and relatively hyperbolic groups of cohomological dimension $d$ for all $d\geq 4$. These examples result from applying CAT$(0)$/CAT$(-1)$ filling constructions (based on singular doubly warped products) to finite volume hyperbolic manifolds with toral cusps. The groups obtained have a number of interesting properties, which are established by analyzing their boundaries at infinity by a kind of Morse-theoretic technique, related to but distinct from ordinary and combinatorial Morse theory.

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。

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