Generalized Miura Transformations, Two-Boson KP Hierarchies and their Reduction to KDV Hierarchies
H. Aratyn, L. A. Ferreira, J. F. Gomes, R. T. Medeiros, A. H. Zimerman
Abstract
Bracket preserving gauge equivalence is established between several two-boson generated KP type of hierarchies. These KP hierarchies reduce under symplectic reduction (via Dirac constraints) to KdV, mKdV and Schwarzian KdV hierarchies. Under this reduction the gauge equivalence is taking form of the conventional Miura maps between the above KdV type of hierarchies.
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