T-systems and the pentagram map
arXiv:1405.6758 · doi:10.1016/j.geomphys.2014.07.003
Abstract
These notes summarize two different connections between two discrete integrable systems, the -system and its infinite-rank analog, the octahedron relation, and the pentagram map and its various generalizations.
21 pages, contribution to FDIS13, July 2013