Bromberg's conjecture on local connectivity of Bers-slice closures

Let SS be a compact hyperbolic surface whose interior S0S^0 is not a once-punctured torus, thrice-punctured sphere, or 4-times punctured sphere. Let QF(S)QF(S) be the quasifuchsian deformation space, and let a Bers slice be one of its standard slices obtained by fixing one conformal structure at infinity. A closure is locally connected if each point has arbitrarily small connected neighborhoods in the closure.

Bromberg's Bers-slice conjecture. The closure of any Bers slice in QF(S)QF(S) is not locally connected.

The conjecture is presented as an expected extension of known non-local-connectivity phenomena, in settings where the wrapping construction may not apply. The source gives no resolution, so it remains open.

Sources & referencesView supporting material

Primary source

Richard D. Canary, “Introductory bumponomics: the topology of deformation spaces of hyperbolic 3-manifolds”, arXiv:1001.2080 (2010).

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