Uniqueness in a doubly characteristic Cauchy problem

Adalberto Panobianco Bergamasco and Hermano de Souza Ribeiro

Vol. 136 (1989), No. 2, 229–240

DOI: 10.2140/pjm.1989.136.229

Abstract

This article studies uniqueness, in the class of distributions, of solutions of the Cauchy problem for a class of degenerate hyperbolic second order equations, when the initial curve contains a doubly characteristic point. The techniques employed are Carleman estimates and the concatenation method.

Mathematical Subject Classification 2000

Primary: 35A07

Milestones

Received: 5 October 1987

Revised: 26 February 1988

Published: 1 February 1989