We show here that the Nielsen core of the bumping set of the domain of discontinuity of a Kleinian group Γ is the boundary of the characteristic submanifold of the associated 3–manifold with boundary. Some examples of interesting characteristic submanifolds are given. We also give a construction of the characteristic submanifold directly from the Nielsen core of the bumping set. The proofs are from “first principles”, using properties of uniform domains and the fact that quasi-conformal discs are uniform domains.
Keywords: Kleinian group, characteristic submanifold
Walsh, Genevieve S  1
@article{10_2140_agt_2014_14_283,
author = {Walsh, Genevieve S},
title = {The bumping set and the characteristic submanifold},
journal = {Algebraic and Geometric Topology},
pages = {283--297},
year = {2014},
volume = {14},
number = {1},
doi = {10.2140/agt.2014.14.283},
url = {http://geodesic.mathdoc.fr/articles/10.2140/agt.2014.14.283/}
}
Walsh, Genevieve S. The bumping set and the characteristic submanifold. Algebraic and Geometric Topology, Tome 14 (2014) no. 1, pp. 283-297. doi: 10.2140/agt.2014.14.283
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