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exotic-smooth-structures

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bwuebben / exotic-s2xs2

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Scripts, certificates, and papers reducing a homeomorphism question for Lidman–Piccirillo 4-manifolds to the exotic S²×S² problem, plus a certificate-complete computation of π₁ via coset enumeration and Knuth–Bendix completion.

reproducible-research computational-mathematics gap-system knuth-bendix fundamental-group low-dimensional-topology geometric-topology 4-manifolds exotic-smooth-structures coset-enumeration
  • Updated Jul 28, 2026
  • GAP

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