Local well-posedness and persistence property for the generalized Novikov equation
DISCRETE AND CONTINUOUS DYNAMICAL SYSTEMS(2014)
Abstract
In this paper, we study the generalized Novikov equation which describes the motion of shallow water waves. By using the Littlewood-Paley decomposition and nonhomogeneous Besov spaces, we prove that the Cauchy problem for the generalized Novikov equation is locally well-posed in Besov space B-p,r(s) with 1 <= p,r <= +infinity and s > max {1 + 1/p, 3/2}. We also show the persistence property of the strong solutions which implies that the solution decays at infinity in the spatial variable provided that the initial function does.
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Key words
Cauchy problem,persistence property,Novikov equation,Besov spaces,Littlewood-Paley decomposition
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