Regenerating hyperbolic cone structures from Nil

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6 Citations (Scopus)

Abstract

Let O be a three-dimensional Nil-orbifold, with branching locus a knot Σ transverse to the Seifert fibration. We prove that O is the limit of hyperbolic cone manifolds with cone angle in (π - ε, π). We also study the space of Dehn filling parameters of O - Σ. Surprisingly it is not diffeomorphic to the deformation space constructed from the variety of representations of O - Σ. As a corollary of this, we find examples of spherical cone manifolds with singular set a knot that are not locally rigid. Those examples have large cone angles.
Original languageEnglish
Pages (from-to)815-852
JournalGeometry and Topology
Volume6
DOIs
Publication statusPublished - 1 Jan 2002

Keywords

  • Cone 3-manifolds
  • Hyperbolic structure
  • Local rigidity

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