Department Seminars and Colloquia

Simple ribbon moves and primeness of knots

Algebra/Geometry/Topology Seminar

Tatsuya Tsukamoto

Institution: Osaka Institute of Technology
Date: Tue 2nd November 2010
Time: 2:00 PM
Location: 213 Richard Berry

Abstract: We define and study local moves on links, called simple ribbon moves. Each simple ribbon move on a link L is a special kind of a band sum of L and trivial links. We study when a simple ribbon move changes a link type, and if a knot which can be transformed into the trivial knot by one simple ribbon move is prime. This is a joint work with Kazuaki Kobayashi and Tetsuo Shibuya.

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