2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/63543There exist combable groups in which the conjugacy problem is unsolvable. The isomorphism problem is unsolvable for certain recursive sequences of finite presentations of combable groups.10 pages, 1 small figureGroup TheoryGeometric Topology20F67; 20F10The conjugacy and isomorphism problems for combable groupstext