2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/116719We develop a Belyi type theory that applies to Klein surfaces, i.e. (possibly non-orientable) surfaces with boundary which carry a dianalytic structure. In particular we extend Belyi's famous theorem from Riemann surfaces to Klein surfaces.10 pages, 5 figuresAlgebraic GeometryComplex VariablesNumber Theory30F50; 11G30; 14H30text