ON A THREE-COMPONENT CAMASSA-HOLM EQUATION WITH PEAKONS

In this paper, we are concerned with three-Component Camassa-Holm equation with peakons. First, We establish the local well-posedness in a range of the Besov spaces B-p, r(s) , p, r is an element of [1, infinity], s > max {3/2, 1 + 1/p} (which generalize the Sobolev spaces H-s) by using Littlewood-Paley decomposition and transport equation theory. Second, the local well-posedness in critical case (with s = 3/2, p = 2, r = 1) is considered. Then, with analytic initial data, we show that its solutions are analytic in both variables, globally in space and locally in time. Finally, we consider the initial boundary value problem, our approach is based on sharp extension results for functions on the half-line and several symmetry preserving properties of the equations under discussion.