Electronic Journal of Differential Equations,
Vol. 2003(2003), No. 103, pp. 1-8.

Title: A classical solution weakened on the axis for a mixed problem of
       inhomogeneous hyperbolic equations

Author: Raid Al-Momani (Yarmouk Univ., Irbid, Jordan)

Abstract: 
  The main purpose of this paper is to present sufficient conditions, 
  on the forcing term of a mixed problem for three dimensional 
  hyperbolic equations of any even order, for the existence of 
  axially weakened classical solutions. 
 
Submitted Submitted December 20, 2002. Published October 9, 2003.
Math Subject Classifications: 35L70, 58J45.
Key Words: Weakened classical solutions; hyperbolic equations.