Surgery and duality.
h-cobordisms between 1-connected 4-manifolds.
On the Classification of Topological 4-Manifolds with Finite Fundamental Group.
Cancellation of hyperbolic forms and topological four-manifolds.
Cancellation of lattices and finite two-complexes.
Cancellation, elliptic surfaces and the topology of certain four-manifolds.
Smooth sturctures on algebraic surfaces with cyclic fundamental group.
Smooth structures on algebraic surfaces with finite fundamental group.
A geometric description of differential cohomology
In this paper we give a geometric cobordism description of differential integral cohomology. The main motivation to consider this model (for other models see [, , , ]) is that it allows for simple descriptions of both the cup product and the integration. In particular it is very easy to verify the compatibilty of these structures. We proceed in a similar way in the case of differential cobordism as constructed in []. There the starting point was Quillen’s cobordism description of singular cobordism...
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