Mathematical Sciences Classification System
57Qxx - PL-topology
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57Q05General topology of complexes
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57Q10Simple homotopy type, Whitehead torsion, Reidemeister-Franz torsion, etc. [See also 19B28]
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57Q12Wall finiteness obstruction for CW-cmplexes
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57Q15Triangulating manifolds
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57Q20Cobordism
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57Q25Comparison of PL-structures: classification, Hauptvermutung
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57Q30Engulfing
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57Q35Embeddings and immersions
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57Q37Isotopy
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57Q40Regular neighborhoods
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57Q45Knots and links (in high dimensions) {For the low-dimensional case, see 57M25}
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57Q50
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57Q55Approximations
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57Q60Cobordism and concordance
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57Q65General position and transversality
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57Q91Equivariant PL-topology
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57Q99None of the above, but in this section