In this paper we give a sufficient condition for a punctured topological 4-manifold to have uncountably many differentiable structures. We also formulate a conjecture about a generalization of Casson's invariant and Rochlin's invariant, which would imply existence of uncountably many differentiable structures on a punctured topological 4-manifold with nontrivial Kirby-Siebenmann obstruction.
机构:
Univ Waterloo, Dept Pure Math, Waterloo, ON N2L 3G1, Canada
Univ Calif Davis, One Shields Ave, Davis, CA 95616 USAUniv Waterloo, Dept Pure Math, Waterloo, ON N2L 3G1, Canada
Islambouli, Gabriel
Naylor, Patrick
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机构:
Univ Waterloo, Dept Pure Math, Waterloo, ON N2L 3G1, Canada
McMaster Univ, Hamilton Hall,1280 Main St West Hamilton, Hamilton, ON L8S 4K1, CanadaUniv Waterloo, Dept Pure Math, Waterloo, ON N2L 3G1, Canada
机构:
Ewha Womans Univ, Div Math & Phys Sci, Coll Nat Sci, Seoul 120750, South KoreaEwha Womans Univ, Div Math & Phys Sci, Coll Nat Sci, Seoul 120750, South Korea