A new technique for the link slice problem.
A Nijenhuis-type tensor on the quotient of a distribution
A non-abelian Seiberg-Witten invariant for integral homology 3-spheres.
A noncompact -cobordism theorem
A non-𝒵-compactifiable polyhedron whose product with the Hilbert cube is 𝒵-compactifiable
We construct a locally compact 2-dimensional polyhedron X which does not admit a 𝒵-compactification, but which becomes 𝒵-compactifiable upon crossing with the Hilbert cube. This answers a long-standing question posed by Chapman and Siebenmann in 1976 and repeated in the 1976, 1979 and 1990 versions of Open Problems in Infinite-Dimensional Topology. Our solution corrects an error in the 1990 problem list.
A non-extended hermitian form over Z [Z].
A non-linear version of Swan's theorem.
A norm for the cohomology of 2-complexes.
A Note on 2-fold Branched Covering Spaces of S3.
A note on 4-dimensional handlebodies
A note on a 3-dimensional homogeneous space
A Note on a Heegaard Diagram of S3.
A note on a multi-variable polynomial link invariant
A note on a recursive formula of the Arf-Kervaire invariant.
A note on characteristic classes
This paper studies the relationship between the sections and the Chern or Pontrjagin classes of a vector bundle by the theory of connection. Our results are natural generalizations of the Gauss-Bonnet Theorem.
A note on closed -cells in
A note on codimension-1 foliations
A note on compact groups, acting on R-trees
A note on Donaldson polynomials for K3 surfaces.
A note on generalized flag structures
Generalized flag structures occur naturally in modern geometry. By extending Stefan's well-known statement on generalized foliations we show that such structures admit distinguished charts. Several examples are included.