Conjecture on geodesic-covering numbers of geometrically finite Fuchsian groups

Let Γ\Gamma be a discrete subgroup of PSL2(R)\mathrm{PSL}_2(\mathbb{R}) whose fundamental domain has finitely many sides; such a group is geometrically finite. Geometrically finite geodesic-covering conjecture. The geodesic-covering number of Γ\Gamma is finite.

This generalizes the preceding finite-index modular-subgroup conjecture and is supported in the source by examples with finite geodesic-covering number, including a translation group and finite subgroups. The general claim remains unresolved there.

Sources & referencesView supporting material

Primary source

Zhipeng Lu and Xianchang Meng, “Erdős distinct distances in hyperbolic surfaces”, arXiv:2006.16565 (2020).

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