57N05  Topology of $E^2$, $2$manifolds


57N10  Topology of general $3$manifolds [See also 57Mxx]


57N12  Topology of $E^3$ and $S^3$ [See also 57M40]


57N13  Topology of $E^4$, $4$manifolds [See also 14Jxx, 32Jxx]


57N15  Topology of $E^n$, $n$manifolds ($4 < n < \infty$)


57N16  Geometric structures on manifolds [See also 57M50]


57N17  Topology of topological vector spaces


57N20  Topology of infinitedimensional manifolds [See also 58Bxx]


57N25  Shapes [See also 54C56, 55P55, 55Q07]


57N30  Engulfing


57N35  Embeddings and immersions


57N37  Isotopy and pseudoisotopy


57N40  Neighborhoods of submanifolds


57N45  Flatness and tameness


57N50  $S^{n1}\subset E^n$, Schoenflies problem


57N55  Microbundles and block bundles [See also 55R60, 57Q50]


57N60  Cellularity


57N65  Algebraic topology of manifolds


57N70  Cobordism and concordance


57N75  General position and transversality


57N80  Stratifications


57N99  None of the above, but in this section

