N. Joshi et Gk. Srinivasan, THE RADIUS OF CONVERGENCE AND THE WELL-POSEDNESS OF THE PAINLEVE EXPANSIONS OF THE KORTEWEG-DE-VRIES EQUATION, Nonlinearity, 10(1), 1997, pp. 71-79
In this paper we obtain explicit lower bounds for the radius of conver
gence of the Painleve expansions of the Korteweg-de Vries equation aro
und a movable singularity manifold S in terms of the sup norms of the
arbitrary functions involved. We use this estimate to prove the well-p
osedness of the singular Cauchy problem on S in the form of continuous
dependence of the meromorphic solution on the arbitrary data.