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Minimal genus and fibering of canonical surfaces via disk decomposition

Published online by Cambridge University Press:  01 May 2014

A. Stoimenow*
Affiliation:
Gwangju Institute of Science and Technology, School of General Studies, GIST College, 123 Cheomdan-gwagiro, 1 Oryong-dong, Buk-gu, Gwangju 500-712, Korea email stoimeno@stoimenov.nethttp://stoimenov.net/stoimeno/homepage/

Abstract

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This paper contains some applications of the description of knot diagrams by genus, and Gabai’s methods of disk decomposition. We show that there exists no genus one knot of canonical genus 2, and that canonical genus 2 fiber surfaces realize almost every Alexander polynomial only finitely many times (partially confirming a conjecture of Neuwirth).

Type
Research Article
Copyright
© The Author 2014 

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