Recursion operator of the Narita-Itoh-Bogoyavlensky lattice
  We construct a recursion operator for the family of Narita-Itoh-Bogoyavlensky infinite lattice equations using its Lax presentation and present their mastersymmetries and bi-Hamiltonian structures. We show that this highly nonlocal recursion operator generates infinite many local symmetries. 
Jing Ping Wang
nlin.SI