Ptolemy coordinates and the A-polynomial

Series
Geometry Topology Seminar
Time
Friday, April 11, 2014 - 1:05pm for 1 hour (actually 50 minutes)
Location
Skiles 006
Speaker
Christian Zickert – University of Maryland – zickert@math.umd.eduhttp://www2.math.umd.edu/~zickert
Organizer
Stavros Garoufalidis
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.