HKR-type invariants of 4-thickenings of 2-dimensional CW complexes.
Homeomorphic non-diffeomorphic surfaces with samll invariants.
Homogeneous Connections and Moduli Spaces.
Homologie associée à une fonctionnelle
Homology Hopf surfaces
Homotopy 's with several symplectic structures.
Hyperbolic 4-manifolds and conformally flat 3-manifolds
Hyperbolic 4-manifolds and tesselations
Hyperbolic structure on a complement of tori in the 4-sphere.
Immersed Spheres in ....2 and S2 x S2.
Infinite group actions on spheres.
This paper is mainly intended as a survey of the recent work of a number of authors concerning certain infinite group actions on spheres and to raise some as yet unanswered questions. The main thrust of the current research in this area has been to decide what topological and geometrical properties characterise the infinite conformal or Möbius groups. One should then obtain reasonable topological or geometrical restrictions on a subgroup G of the homeomorphism group of a sphere which will imply...
Instanton moduli as a novel map from tori to K3-surfaces.
Instantony a topologie čtyřrozměrných variet
La conjecture de Poincaré topologique en dimension 4
L'instanton gordien
Local moves on knots and products of knots
We show a relation between products of knots, which are generalized from the theory of isolated singularities of complex hypersurfaces, and local moves on knots in all dimensions. We discuss the following problem. Let K be a 1-knot which is obtained from another 1-knot J by a single crossing change (resp. pass-move). For a given knot A, what kind of relation do the products of knots, K ⊗ A and J ⊗ A, have? We characterize these kinds of relation between K ⊗ A and J ⊗ A by using local moves on high...
Moduli spaces over manifolds with involutions.
Non-singular graph-manifolds of dimension 4.
Nonsmoothable Zp actions on contractible 4-manifolds.
On 4-manifolds with free fundamental group.