Symplectic and complex geometric aspects of the 3-manifold embedding problem in 4-space
Tosun BulentAGDT Seminar
on 11/13/20
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.