Nonlocal symmetries of Lax integrable equations: a comparative study

H. Baran, I. S. Krasil'shchik, O. I. Morozov +1

We continue here the study of Lax integrable equations. We consider four three-dimensional equations: (1) the rdDym equation $u_{ty}=u_x{u}_{xy}-u_y{u}_{xx}$, (2) the 3D Pavlov e…