2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/132985The space of all immersed closed curves of rotation degree 0 in the plane modulo reparametrizations has the same homotopy groups as the circle times the 2-sphere.7 pagesDifferential GeometryAlgebraic TopologyThe homotopy type of the space of degree 0 immersed plane curvestext