A proof of Culter's theorem on the existence of periodic orbits in polygonal outer billiards

2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/129978We discuss a recent result by C. Culter: every polygonal outer billiard has a periodic trajectory.Dynamical SystemsA proof of Culter's theorem on the existence of periodic orbits in polygonal outer billiardstext