Solitons from Dressing in an Algebraic Approach to the Constrained KP Hierarchy

Abstract

The algebraic matrix hierarchy approach based on affine Lie $sl(n)$ algebras leads to a variety of 1+1 soliton equations. By varying the rank of the underlying $sl(n)$ algebra as well as its gradation in the affine setting, one encompasses the set of the soliton equations of the constrained KP hierarchy. The soliton solutions are then obtained as elements of the orbits of the dressing transformations constructed in terms of representations of the vertex operators of the affine $sl(n)$ algebras realized in the unconventional gradations. Such soliton solutions exhibit non-trivial dependence on the KdV (odd) time flows and KP (odd and even) time flows which distinguishes them from the conventional structure of the Darboux-Bäcklund Wronskian solutions of the constrained KP hierarchy.

LaTeX, 13pgs

References in corpus (3)

• Tau-functions and Dressing Transformations for Zero-Curvature Affine Integrable Equations
• Virasoro Symmetry of Constrained KP Hierarchies
• Constrained KP Models as Integrable Matrix Hierarchies

Cited by in corpus (6)

• On negative flows of the AKNS hierarchy and a class of deformations of bihamiltonian structure of hydrodynamic type
• Supersymmetry and the KdV equations for Integrable Hierarchies with a Half-integer Gradation
• Dyonic Integrable Models
• Multicharged Dyonic Integrable Models
• Vertex Operators and Solitons of Constrained KP Hierarchies
• Vertex Operators and Soliton Solutions of Affine Toda Model with U(2) Symmetry