Smooth contractible hypersurfaces in Cn and exotic algebraic structures on C3.
Smooth spheres in IR4 with four critical points are standard.
Some infinte families of U-hypersurfaces.
Some Totally Real Embeddings of Three-Manifolds.
Stable surfaces in Euclidean three space.
Steenrod operations in subanalytic homology
Stiefel-Whitney characteristic classes and parallelizability of Grassmann manifolds
Su una congettura di Nash
Submanifolds of codimension two and homology equivalent manifolds
In this paper new methods of studying codimension two embeddings of manifolds are outlined. Results are stated on geometric periodicity of knot cobordism. The group of local knots of a manifold in a 2-plane bundle is introduced and computed, and applied to -close embeddings. General codimension two splitting theorems are discussed, with applications to equivariant knots and knot cobordism. A general existence theorem for P.L. (non-locally flat) embeddings is also given.The methods involve some...
Sur les étalements ramifiés de surfaces
Symmetric models of the real projective plane.
Symmetries of Möbius Ladders.