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Lax representations with non-removable parameter and exotic cohomology of symmetry algebras of PDEs

By Oleg I. Morozov


This paper develops the technique of constructing Lax representations for PDEs via non-central extensions of their contact symmetry algebras. We show that the method is applicable to the Lax representations with non-removable spectral parameters

Topics: Nonlinear Sciences - Exactly Solvable and Integrable Systems
Year: 2018
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