The Lie affine foliations on 4-manifolds.
The minimum dimension of a residual ANR
The Nielsen coincidence theory on topological manifolds
We generalize the coincidence semi-index introduced in [D-J] to pairs of maps between topological manifolds. This permits extending the Nielsen theory to this class of maps.
The Novikov conjecture and low-dimensional topology.
The ?-orbifold Group of a Link.
The -central extension of the Mapping Class Group of orientable surfaces
Topological Quantum Field Theories are closely related to representations of Mapping Class Groups of surfaces. Considering the case of the TQFTs derived from the Kauffman bracket, we describe the central extension coming from this representation, which is just a projective extension.
The recognition problem for topological manifolds
The regular projective solution space of the figure-eight knot complement.
The Relationship between Homology and Topological Manifolds via Homology Transversaltiy
The relative coincidence Nielsen number
We define a relative coincidence Nielsen number for pairs of maps between manifolds, prove a Wecken type theorem for this invariant and give some formulae expressing by the ordinary Nielsen numbers.
The Second Homology Group of the Mapping Class Group of an Orientable Surface.
The Seiberg-Witten invariants and 4-manifolds with essential tori.
The Seiberg-Witten invariants of symplectic four-manifolds
The shape genus of a shape map
The slicing number of a knot.
The smallest arithmetic hyperbolic three-orbi-fold.
The Smith Conjecture in dimension four and equivariant gauge theory.
The space of Lipschitz maps from a compactum to an absolute neighborhood LIP extensor
The Spaces of Closed Convex Sets in Euclidean Spaces with the Fell Topology
Let be the space of all non-empty closed convex sets in Euclidean space ℝ ⁿ endowed with the Fell topology. We prove that for every n > 1 whereas .
The spin refinded Kauffman bracket skein module of S1 x S2 and lens spaces.