12 citations · 71 across the 37 of their papers we have counts for
28 papers · 1 filter
Closed manifold surgery obstructions and the Oozing Conjecture
Ian Hambleton, Ozgun Unlu
We complete the description of surgery obstructions up to homotopy equivalence for closed oriented manifolds with finite fundamental group. New examples are presented of non-trivia…
Four-manifolds, two-complexes and the quadratic bias invariant
Ian Hambleton, John Nicholson
Kreck and Schafer produced the first examples of stably diffeomorphic closed smooth 4-manifolds which are not homotopy equivalent. They were constructed by applying the doubling co…
Finite group actions on 4-manifolds and equivariant bundles
Nima Anvari, Ian Hambleton
Given a 4-manifold with a homologically trivial and locally-linear cyclic group action, we obtain necessary and sufficient conditions for the existence of equivariant bundles. The…
A stability range for topological 4-manifolds
Ian Hambleton
We introduce a new stable range invariant for the classification of closed, oriented topological -manifolds (up to -cobordism), after stabilization by connected sum with a un…
Minimal Euler Characteristics for Even-Dimensional Manifolds with Finite Fundamental Group
Alejandro Adem, Ian Hambleton
We consider the Euler characteristics of closed orientable topological -manifolds with -connected universal cover and a given fundamental group of type .…
Cyclic Branched Coverings of Brieskorn Spheres Bounding Acyclic 4-Manifolds
Nima Anvari, Ian Hambleton
We show that standard cyclic actions on Brieskorn homology 3-spheres with non-empty fixed set do not extend smoothly to any contractible smooth 4-manifold it may bound. The quotien…