Ahmad Issa

University of British Columbia
Scientific, Seminar
Topology Seminar: Ahmad Issa
October 23, 2019
University of British Columbia
Which 3-manifolds smoothly embed in the 4-sphere? This seemingly simple question turns out to be rather subtle. Using Donaldson's theorem, we derive strong restrictions to embedding a Seifert fibered space over an orientable base surface, which in...