On a method of solving the initial value problem for the wave equation
Authors: Tosihusa Kimura and Yasutaka Sibuya
Journal: Proc. Amer. Math. Soc. 50 (1975), 205-215
MSC: Primary 35C15; Secondary 35L05
MathSciNet review: 0369879
Abstract: The wave equation is formally reduced to Laplace's equation by the change of variable , where . In this paper we shall derive the well-known formula for the solution of Cauchy's problem of the wave equation from the integral representations of the solutions of Dirichlet and Neumann problems of Laplace's equation in the half-plane. Our method can be viewed as a hyperfunction-theoretic approach.