A remark on nonlocal symmetries for the Calogero–Degasperis–Ibragimov–Shabat Equation
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چکیده
We consider the Calogero–Degasperis–Ibragimov–Shabat depending on the local variables and on the integral of the only local conserved density of the equation in question. The resulting Lie algebra of these symmetries turns out to be a central extension of that of local symmetries.
منابع مشابه
The Complete Set of Generalized Symmetries for the Calogero–Degasperis–Ibragimov–Shabat Equation
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تاریخ انتشار 2002