School Seminars and Colloquia

When knots don't fiber

Geometry/Topology Seminar

by Dan Silver


Institution: University of South Alabama
Date: Tue 26th February 2008
Time: 1:00 PM
Location: Venue to be confirmed, Richard Berry Building, Uni of Melb

Abstract: In this joint work with Susan Williams we consider the conjecture: a knot
is nonfibered if and only if its infinite cyclic cover has uncountably
many finite covers. We prove it for a class of knots that includes all
knots of genus 1. We also discuss two equivalent forms of the conjecture,
one involving twisted Alexander polynomials, the other a weak form of
subgroup separability.


For More Information: Lawrence Reeves L.Reeves@ms.unimelb.edu.au