共 50 条
- [37] An algorithmic approach to construct crystallizations of 3-manifolds from presentations of fundamental groups PROCEEDINGS OF THE INDIAN ACADEMY OF SCIENCES-MATHEMATICAL SCIENCES, 2016, 126 (04): : 629 - 653
- [38] The number of subgroups in the fundamental groups of some non-orientable 3-manifolds FORMAL POWER SERIES AND ALGEBRAIC COMBINATORICS, 2000, : 276 - 287
- [39] End reductions, fundamental groups, and covering spaces of irreducible open 3-manifolds GEOMETRY & TOPOLOGY, 2005, 9 : 971 - 990
- [40] CYCLIC NORMAL SUBGROUPS OF FUNDAMENTAL GROUPS OF 3-MANIFOLDS - PRELIMINARY-REPORT NOTICES OF THE AMERICAN MATHEMATICAL SOCIETY, 1976, 23 (01): : A197 - A197