Ubiquity of systems of homogeneous polynomial equations with a unique solution
Hausel TamásAGDT Seminar
on 10/7/22
Abstract: We develop the theory of the diagrammatics of surface cross sections to prove that there are an infinite number of homology 3-spheres smoothly embeddable in a homology 4-sphere but not in a homotopy 4-sphere. Our primary obstruction comes from work of Taubes.