Dunfield's orderability conjecture for Dehn fillings

Let MM be a hyperbolic Z\mathbb{Z}-homology solid torus, and let M(0)M(0) denote its longitudinal filling. Assume that M(0)M(0) is hyperbolic and that its holonomy representation has trace field with a real embedding at which the associated quaternion algebra splits. A Dehn filling M(r)M(r) is called orderable when its fundamental group is left-orderable. Dunfield's conjecture. Every Dehn filling M(r)M(r) with rational rr in an interval (a,a)(-a,a) is orderable. The conjecture concerns orderability near the longitudinal filling under an arithmetic splitting hypothesis; the source does not specify whether it has been resolved.

Sources & referencesView supporting material

Primary source

Xinghua Gao, “Orderability of Homology Spheres Obtained by Dehn Filling”, arXiv:1810.11202 (2022).

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