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C. McDonald 2-17-2022

Title:  Surface slices and homology spheres
Abstract:  In this talk, 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 Daemi.

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