23rd International Conference on Integrable Systems and Quantum Symmetries (ISQS), Prague, Czech Republic, 23 - 27 June 2015, vol.670
Conference Paper / Full Text
Middle East Technical University Affiliated:
A class of semi-discrete chains of the form l(1x) = f(x, t, ti, G) is considered. For the given chains easily verifiable conditions for existence of x-integral of minimal order 4 are obtained.