-matrices and Hamiltonian Structures for Certain Lax Equations
arXiv:1012.5245
Abstract
In this paper a list of -matrices on a certain coupled Lie algebra is obtained. With one of these -matrices, we construct infinitely many bi-Hamiltonian structures for each of the two-component BKP and the Toda lattice hierarchies. We also show that, when such two hierarchies are reduced to their subhierarchies, these bi-Hamiltonian structures are reduced correspondingly.