Title : On ribbon number of the Kinoshita-Terasaka knot
Speaker : Yoko Mizuma (University of Tokyo)
Abstract :

In this talk we obtain the following Theorem as an application of the formula for the first derivative at $-1$ of the Jones polynomial of ribbon knots of 1-fusion. \smallskip {\sc Theorem.} {\it Ribbon number of the Kinoshita-Terasaka knot is three.}

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