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Knots in Washington XXVII; 3rd Japan-USA Workshop in Knot Theory
January 9-11, 2009
George Washington University
Washington, DC, USA

Organizers
Yoshiyuki Ohyama (TWCU), Jozef H. Przytycki (GWU), Yongwu Rong (GWU), Alexander Shumakovitch (GWU), Kouki Taniyama (Waseda and GWU), Tatsuya Tsukamoto (Osaka IT), Hao Wu (GWU), Akira Yasuhara (Tokyo GU)

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Pseudo diagrams of knots, links and spatial graphs
by
Ryo Hanaki
Graduate School of Education, Waseda University

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.

Date received: November 29, 2008

Copyright © 2008 by the author(s). The author(s) of this work and the organizers of the conference have granted their consent to include this abstract in Topology Atlas. Document # caxq-41.