Ptolemy coordinates, Dehn invariant, and the A-polynomial
Geometric Topology
2016-05-27 v1
Abstract
We define Ptolemy coordinates for representations that are not necessarily boundary-unipotent. This gives rise to a new algorithm for computing the SL(2,C) A-polynomial, and more generally the SL(n,C) A-varieties. We also give a formula for the Dehn invariant of an SL(n,C)-representation.
Keywords
Cite
@article{arxiv.1405.0025,
title = {Ptolemy coordinates, Dehn invariant, and the A-polynomial},
author = {Christian K. Zickert},
journal= {arXiv preprint arXiv:1405.0025},
year = {2016}
}
Comments
21 pages, 15 figures