Article ID Journal Published Year Pages File Type
8256619 Physica D: Nonlinear Phenomena 2012 10 Pages PDF
Abstract
► We study deformations of exact semisimple Poisson pencils of hydrodynamic type. ► The central invariants of the full pencil are shown to be expressible as residues. ► The constancy of the central invariants is proved to be equivalent to the exactness of the full pencil.
Keywords
Related Topics
Physical Sciences and Engineering Mathematics Applied Mathematics
Preview
Exact Poisson pencils, τ-structures and topological hierarchies
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