2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/112800This article was withdrawn by the arXiv.org administrators since it plagiarizes math.GT/0011056.This article was withdrawn by the arXiv.org administrators since it plagiarizes math.GT/0011056Geometric TopologyA short visit into the Dehn filling Theorytext