A Characterization of Discrete Time Soliton Equations
arXiv:nlin/0108019 · doi:10.1143/JPSJ.70.3517
Abstract
We propose a method to characterize discrete time evolution equations, which generalize discrete time soliton equations, including the $q$-difference Painlevé IV equations discussed recently by Kajiwara, Noumi and Yamada.
13 pages