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Geometry & Topology
Closed hypersurfaces of low entropy are isotopically trivial
Lu WangYale University
September 28, 2021 - 4:15pm
LOM 214
We show that any closed connected hypersurface in 4-dimensional Euclidean space with entropy less than or equal to that of the round cylinder is smoothly isotopic to the standard three-sphere. This is joint work with Jacob Bernstein.