Mathematical Sciences Classification System
32Sxx - Singularities 
[See also  58Kxx]
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                            32S05Local singularities [See also 14J17]
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                            32S10Invariants of analytic local rings
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                            32S15Equisingularity (topological and analytic) [See also 14E15]
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                            32S20Global theory of singularities; cohomological properties [See also 14E15]
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                            32S22Relations with arrangements of hyperplanes [See also 52C35]
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                            32S25Surface and hypersurface singularities [See also 14J17]
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                            32S30Deformations of singularities; vanishing cycles [See also 14B07]
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                            32S35
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                            32S40Monodromy; relations with differential equations and $D$-modules
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                            32S45Modifications; resolution of singularities [See also 14E15]
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                            32S50Topological aspects: Lefschetz theorems, topological classification, invariants
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                            32S55
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                            32S60Stratifications; constructible sheaves; intersection cohomology [See also 58Kxx]
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                            32S65Singularities of holomorphic vector fields and foliations
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                            32S70Other operations on singularities
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                            32S99None of the above, but in this section