4 citations · 6 across the 2 of their papers we have counts for
4 papers
A simplification problem in manifold theory
Jean-Claude Hausmann, Bjørn Jahren
Two smooth manifolds M and N are called R-diffeomorphic if their product with the real line are diffeomorphic. We consider the following simplification problem: does R-diffeomorphi…
Whitehead torsion of inertial h-cobordisms
Bjørn Jahren, Slawomir Kwasik
We study the Whitehead torsions of inertial h-cobordisms, and identify various types representing a nested sequence of subsets of the Whitehead group. A number of examples are give…
How different can h-cobordant manifolds be?
Bjørn Jahren, Slawomir Kwasik
We study the homeomorphism types of manifolds h-cobordant to a fixed one. Our investigation is partly motivated by the notion of special manifolds introduced by Milnor in his study…
Free involutions on S^1xS^n
Bjørn Jahren, Sławomir Kwasik
Topological free involutions on S^1xS^n are classified up to conjugation. As a byproduct we obtain a new computation of the group of concordance classes of homeomorphisms of the pr…