School Seminars and Colloquia

Pseudo diagrams of knots, links and spatial graphs and its related topics

Algebra/Geometry/Topology Seminar

by Ryo Hanaki

Institution: Waseda University
Date: Tue 15th September 2009
Time: 2:00 PM
Location: Hercus Theatre, David Caro

Abstract: A diagram of a knot, a link or a spatial graph is a projection of it into the 2-sphere with over/under information at the every double points. In this talk we introduce a notion of a pseudo diagram which is a projection with over/under information at some double points of it. We discuss whether or not we can determine the triviality or the non-triviality of the knot from the pseudo diagram. I talk about its related topics.

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