Generalized Penner coordinates and the deformed Farey triangulation

par Boris Springborn (TU Berlin)

mercredi 2 sept. 2026, 13:30 → 14:30 Europe/Paris

Amphi Jordan (Bat. Braconnier)

Generalizing Penner coordinates to ideal triangulations of hyperbolic surfaces with geodesic boundary instead of cusps provides a different geometric perspective on the deformed Farey triangulation and the deformed rationals introduced by Morier-Genoud and Ovsienko.