Local well-posedness of the Cauchy problem for the generalized Camassa-Holm equation in Besov spaces
We study local well-posedness of the Cauchy problem for the generalized Camassa-Holm equation for the initial data u₀(x) in the Besov space with max(3/2,1 + 1/p) < s ≤ m and (p,r) ∈ [1,∞]², where g:ℝ → ℝ is a given -function (m ≥ 4) with g(0)=g’(0)=0, and κ ≥ 0 and γ ∈ ℝ are fixed constants. Using estimates for the transport equation in the framework of Besov spaces, compactness arguments and Littlewood-Paley theory, we get a local well-posedness result.