Invariants of pairs in SL(4,C) and SU(3,1)
arXiv:1602.08392 · doi:10.1090/proc/13638
Abstract
We describe a minimal global coordinate system of order 30 on the SL(4,C)-character variety of a rank 2 free group. Using symmetry within this system, we obtain a smaller collection of 22 coordinates subject to 5 further real relations that determine conjugation classes of generic pairs of matrices in SU(3,1).
15 pages, minor revisions, to appear in the Proceedings of the AMS