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Recovering knot diagrams from triangulations


Speaker: Neil Hoffman, Oklahoma State University
Location: Zoom
Start time: Tue, May 11 2021, 1:10PM

While the study of knots originated from manipulating knot diagrams, one can also study knots by analyzing their complements. In fact, Gordon and Luecke showed two knots are equivalent if and only if their complements are homeomorphic. There are well-known procedures for constructing a knot complement from a knot diagram. We will analyze the problem from the other perspective: constructing a knot diagram from a triangulated knot complement and describe an algorithm to produce such a diagram. This is joint work Robert Haraway, Saul Schleimer and Eric Sedgwick.