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Sponsored by the Center for Science and Technology Development of the Ministry of Education
Supervised by Ministry of Education of the People's Republic of China
In this paper, we consider the KdV limit for the one-dimensional shallow water type equation with a special stress force. Under the Gardner-Morikawa transform, we establish that the solutions of such shallow water type system converge to the KdV equation as $\varepsilon\to 0$. This justifies rigorously the KdV limit of the shallow water type equation.
Keywords:Korteweg-de Vries equation; shallow water equation; long wavelength limit; reductive pertuebation method