Quivers and difference Painleve equations
arXiv:0706.2634
Abstract
We will describe natural `Lax pairs' for the difference Painleve equations with affine Weyl symmetry groups of types E6, E7 and E8, showing that they do indeed arise as symmetries of certain Fuchsian systems of differential equations.
30 pages, 14 figures. Dedicated to John McKay