Approximate Hamiltonian Symmetry Groups and Recursion Operators for Perturbed Evolution Equations
نویسندگان
چکیده
منابع مشابه
On recursion operators and nonlocal symmetries of evolution equations
We consider the recursion operators with nonlocal terms of special form for evolution systems in (1+1) dimensions, and extend them to well-defined operators on the space of nonlocal symmetries associated with the so-called universal Abelian coverings over these systems. The extended recursion operators are shown to leave this space invariant. These results apply, in particular, to the recursion...
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ژورنال
عنوان ژورنال: Advances in Mathematical Physics
سال: 2013
ISSN: 1687-9120,1687-9139
DOI: 10.1155/2013/568632