Examples of infinitesimally flexible 3--dimensional hyperbolic cone-manifolds
Examples of infinitesimally flexible 3--dimensional hyperbolic cone-manifolds
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DOI：
10.2969/jmsj/06320581
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发表时间：
2009-10
期刊：
影响因子：
--
通讯作者：
Ivan Izmestiev
中科院分区：
文献类型：
--
作者：
Ivan Izmestiev
Weiss and, independently, Mazzeo and Montcouquiol recently proved that a 3--dimensional hyperbolic cone-manifold (possibly with vertices) with all cone angles less than $2\pi$ is infinitesimally rigid. On the other hand, Casson provided 1998 an example of an infinitesimally flexible cone-manifold with some of the cone angles larger than $2\pi$. In this paper several new examples of infinitesimally flexible cone-manifolds are constructed. The basic idea is that the double of an infinitesimally flexible polyhedron is an infinitesimally flexible cone-manifold. With some additional effort, we are able to construct infinitesimally flexible cone-manifolds without vertices and with all cone angles larger than $2\pi$.
