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math.GR2023
Silhouettes and generic properties of subgroups of the modular group
Frédérique Bassino, Cyril Nicaud, Pascal Weil
We show that the probability for a finitely generated subgroup of the modular group, of size , to be almost malnormal or non-parabolic, tends to 0 as tends to infinity -- wh…
math.GR2023★ 1 cited
The central tree property and algorithmic problems on subgroups of free groups
Mallika Roy, Enric Ventura, Pascal Weil
We study the average case complexity of the uniform membership problem for subgroups of free groups, and we show that it is orders of magnitude smaller than the worst case complexi…