On 3-Manifolds with Finite Solvable Fundamental Groups.
On 4-fold covering moves.
On a problem of S. Ulam concerning Cartesian squares of 2-dimensional polyhedra
On a proof of the JSJ theorem.
On a simple invariant of Turaev-Viro type
On Asymptotic Cones and Quasi-isometry Classes of Fundamental Groups of 3-manifolds.
On boundary slopes of immersed incompressible surfaces
Let be a compact, orientable, irreducible 3-manifold with a torus. We show that there can be infinitely many slopes on realized by the boundary curves of immersed, incompressible, - incompressible surfaces in which are embedded in a neighborhood of .
On branched coverings of 3-manifolds which fiber over the circle.
On Branched Coverings of the 3-Sphere.
On central extensions of mapping class groups.
On compact subsets of an n-manifold
On contractible open 3-manifolds.
On Culler-Shalen seminorms and Dehn filling.
On Cyclic Branched Coverings of Spheres.
On Dihedral Covering Spaces of Knots.
On Embedded 2-Spheres in 3-Manifolds.
On finite type 3-mainfold invarinats II.
On for dimensional s-cobordisms, II.
On Heegaard Decompositions of Torus Knot Exteriors and Related Seifert Fibre Spaces.
On hyperbolic 3-manifolds obtained by Dehn surgery on links.