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Graded Frölicher-Nijenhuis brackets and the theory of recursion operators for super differential equations. (English) Zbl 0841.58032

Lychagin, V. V. (ed.), The interplay between differential geometry and differential equations. Providence, RI: American Mathematical Society. Transl., Ser. 2, Am. Math. Soc. 167(24), 91-129 (1995).
Summary: The theory of the Frölicher-Nijenhuis bracket for \(n\)-graded commutative algebras is developed. On the basis of this theory, deformations and recursion operators are defined, both in local and nonlocal cases. New recursion operators are computed for super versions of KdV, NLS, and Boussinesq equations. These operators are shown to generate new series of symmetries for these equations.
For the entire collection see [Zbl 0824.00020].

MSC:

37J35 Completely integrable finite-dimensional Hamiltonian systems, integration methods, integrability tests
37K10 Completely integrable infinite-dimensional Hamiltonian and Lagrangian systems, integration methods, integrability tests, integrable hierarchies (KdV, KP, Toda, etc.)
35Q53 KdV equations (Korteweg-de Vries equations)
58J15 Relations of PDEs on manifolds with hyperfunctions
58H10 Cohomology of classifying spaces for pseudogroup structures (Spencer, Gelfand-Fuks, etc.)
58H15 Deformations of general structures on manifolds
58J72 Correspondences and other transformation methods (e.g., Lie-Bäcklund) for PDEs on manifolds
58A50 Supermanifolds and graded manifolds
35Q55 NLS equations (nonlinear Schrödinger equations)
35Q58 Other completely integrable PDE (MSC2000)
16W55 “Super” (or “skew”) structure