The A-polynomial And Holonomy Perturbations
arXiv:1304.7232
Abstract
Dunfield-Garoufalidis and Boyer-Zhang proved that the A-polynomial of a nontrivial knot in is nontrivial. In this paper, we use holonomy perturbations to prove the non-triviality of the A-polynomial for a nontrivial, null-homotopic knot in an irreducible 3-manifold. Also, we give a strong constraint on the A-polynomial of a knot in the 3-sphere.
12 pages, 2 figures. Typos corrected. Added Lemma 3.2