Extended Toda Lattice
arXiv:nlin/0307009 · doi:10.1023/A:1026044420886
Abstract
We introduce nonlocal flows that commute with those of the classical Toda hierarchy. We define a logarithm of the difference Lax operator and use it to obtain a Lax representation of the new flows.
8 pages, to be published in the proceedings of the conference NEEDS 2002