Twisted Alexander polynomials of 2-bridge knots for parabolic representations

preprint2013arXivOpen access

Abstract

In this paper we show that the twisted Alexander polynomial associated to a parabolic representation determines fiberedness and genus of a wide class of 2-bridge knots. As a corollary we give an affirmative answer to a conjecture of Dunfield, Friedl and Jackson for infinitely many hyperbolic knots.

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