Given a Farey-type map F with full branches in the extended Hecke group Gamma_m, its dual F_# results from constructing the natural extension of F, letting time go backwards, and projecting. Although numerical simulations may suggest otherwise, we…
Eventi
Horocycle flows on Abelian covers of hyperbolic surfaces – Davide Ravotti (Universität Wien)
The horocycle flow on the unit tangent bundle of a surface of constant negative curvature is the unit speed translation…