21 citations · 66 across the 18 of their papers we have counts for
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math.AT2007
Calculation of UNil for the cyclic group of order two
Qayum Khan
Cappell's unitary nilpotent groups UNil(R;R,R) are calculated for the integral group ring R=Z[C_2] of the cyclic group C_2 of order two. Specifically, they are determined as module…
math.GT2007★ 1 cited
On fibering and splitting of 5-manifolds over the circle
Qayum Khan
Our main result is a generalization of Cappell's 5-dimensional splitting theorem. As an application, we analyze, up to internal s-cobordism, the smoothable splitting and fibering p…
math.GT2007★ 4 cited
On smoothable surgery for 4-manifolds
Qayum Khan
Under certain homological hypotheses on a compact 4-manifold, we prove exactness of the topological surgery sequence at the stably smoothable normal invariants. The main examples a…