Energy-dependent potentials revisited: a universal hierarchy of hydrodynamic type

A hierarchy of infinite-dimensional systems of hydrodynamic type is considered and a general scheme for classifying its reductions is provided. Wide families of integrable systems including, in particular, those associated with energy-dependent spectral problems of Schrodinger type, are characterize...

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Detalles Bibliográficos
Autores: Martínez Alonso, Luis, Shabat, A. B.
Tipo de recurso: artículo
Fecha de publicación:2002
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/59824
Acceso en línea:https://hdl.handle.net/20.500.14352/59824
Access Level:acceso abierto
Palabra clave:51-73
Integrable hierarchies
Benney equations
Kp hierarchy
Dispersionless
Reductions
Física-Modelos matemáticos
Física matemática
Descripción
Sumario:A hierarchy of infinite-dimensional systems of hydrodynamic type is considered and a general scheme for classifying its reductions is provided. Wide families of integrable systems including, in particular, those associated with energy-dependent spectral problems of Schrodinger type, are characterized as reductions of this hierarchy. N-phase type reductions and their corresponding Dubrovin equations are analyzed. A symmetry transformation connecting different classes of reductions is formulated.