2 problems

Let a tau-symmetric integrable Hamiltonian deformation of the Riemann hierarchy be considered modulo normal Miura-type transformations. Write $w_k=\partial_x^k w$. The canonical de…

Let a tau-symmetric integrable Hamiltonian deformation of the Riemann hierarchy be given by a hierarchy of scalar Hamiltonian evolutionary PDEs with Hamiltonian densities and Hamil…