2 papers
math.GT2003
Some examples of aspherical 4-manifolds that are homology 4-spheres
John G. Ratcliffe, Steven T. Tschantz
In this paper, Problem 4.17 on R. Kirby's problem list is solved by constructing infinitely many aspherical 4-manifolds that are homology 4-spheres
math.GT2003
Integral Congruence Two Hyperbolic 5-Manifolds
John G. Ratcliffe, Steven T. Tschantz
In this paper, we classify all the orientable hyperbolic 5-manifolds that arise as a hyperbolic space form where is a torsion-free subgroup of minimal index of the cong…