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math.GT2019
Gluing equations for real projective structures on 3-manifolds
Samuel A. Ballas, Alex Casella
Given an orientable ideally triangulated --manifold , we define a system of real valued equations and inequalities whose solutions can be used to construct projective structu…
math.GT2019
Thin subgroups isomorphic to Gromov--Piatetski-Shapiro lattices
Samuel A. Ballas
In this paper we produce many examples of thin subgroups of special linear groups that are isomorphic to the fundamental groups of non-arithmetic hyperbolic manifolds. Specifically…