Integrable Models and the Toda Lattice Hierarchy

Details Integrable Models and the Toda Lattice Hierarchy Integrable Models and the Toda Lattice Hierarchy

1999-06-21

arxiv.org/abs/hep-th/9906159v1

Physics

High Energy Physics

High Energy Physics - Theory

29 pages, 1 figure, review article, LaTeX

Scientific paper

A pedagogical presentation of integrable models with special reference to the Toda lattice hierarchy has been attempted. The example of the KdV equation has been studied in detail, beginning with the infinite conserved quantities and going on to the Lax formalism for the same. We then go on to symplectic manifolds for which we construct the Lax operator. This formalism is applied to Toda Lattice systems. The Zakharov Shabat formalism aimed at encompassing all integrable models is also covered after which the zero curvature condition and its fallout are discussed. We then take up Toda Field Theories and their connection to W algebras via the Hamiltonian reduction of the WZNW model. Finally, we dwell on the connection between four dimensional Yang Mills theories and the KdV equation along with a generalization to supersymmetry.

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