57Mxx Low-dimensional topology
- 57M05 Fundamental group, presentations, free differential calculus
- 57M07 Topological methods in group theory
- 57M10 Covering spaces
- 57M12 Special coverings, e.g. branched
- 57M15 Relations with graph theory, See also {05Cxx}
- 57M20 Two-dimensional complexes
- 57M25 Knots and links in $S^3$, {For higher dimensions, See
57Q45}
- 57M30 Wild knots and surfaces, etc., wild embeddings
- 57M35 Dehn's lemma, sphere theorem, loop theorem, asphericity
- 57M40 Characterizations of $E^3$ and $S^3$ (Poincare conjecture), See also {57N12}
- 57M50 Geometric structures on low-dimensional manifolds
- 57M60 Group actions in low dimensions
- 57M99 None of the above but in this section
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