Ptolemy coordinates and the A-polynomial

Geometry Topology Seminar
Friday, April 11, 2014 - 13:05
1 hour (actually 50 minutes)
Skiles 006
University of Maryland
The Ptolemy coordinates are efficient coordinates for computingboundary-unipotent representations of a 3-manifold group in SL(2,C). Wedefine a slightly modified version which allows you to computerepresentations that are not necessarily boundary-unipotent. This givesrise to a new algorithm for computing the A-polynomial.