37-XX Dynamical systems and ergodic theory [See also 26A18, 28Dxx, 34Cxx, 34Dxx, 35Bxx, 46Lxx, 58Jxx, 70-XX] 122320

37Kxx Dynamical system aspects of infinite-dimensional Hamiltonian and Lagrangian systems [See also 35Axx, 35Qxx] 19096

37K35 Lie-BĂ¤cklund and other transformations for infinite-dimensional Hamiltonian and Lagrangian systems 2094