Hausdorff combing of groups and for universal covering spaces of closed 3-manifolds
h-Cobordismes entre variétés homéomorphes.
Heegaard Splittings and Branched Coverings of B3.
Heegaard splittings of exteriors of two bridge knots.
Hegaard genus of closed orientable Seifert 3-manifolds.
High-dimensional knots corresponding to the fractional Fibonacci groups
We prove that the natural HNN-extensions of the fractional Fibonacci groups are the fundamental groups of high-dimensional knot complements. We also give some characterization and interpretation of these knots. In particular we show that some of them are 2-knots.
Holonomy groups of five dimensional Bieberbach groups.
Homeotopy groups of punctured spheres with holes
Homological stability for automorphism groups of free groups.
Homology cylinders and the acyclic closure of a free group.
Homomorphic extensions of Johnson homomorphisms via Fox calculus
Using Fox differential calculus, for any positive integer , we construct a map on the mapping class group of a surface of genus with one boundary component, such that, when restricted to an appropriate subgroup, it coincides with the Johnson-Morita homomorphism. This allows us to construct very easily a homomorphic extension to of the second and third Johnson-Morita homomorphisms.
Homotopy dimension and simple cohomological dimension of spaces.
Homotopy invariants of links.