Palavra-chave: ANALYTIC SOLUTION

CAUCHY PROBLEM KDV EQUATION PROPAGATION OF REGULARITY BBM EQUATION WELL-POSEDNESS BENJAMIN EQUATION LOCAL AND GLOBAL WELL-POSEDNESS GEVREY CLASS OF SPACES KORTEWEG-DE VRIES EQUATION NONLINEAR SCHRODINGER EQUATION INITIAL VALUE PROBLEM ZAKHAROV-KUZNETSOV EQUATION RADIUS OF ANALYTICITY