Electronic Journal of Differential Equations,
Vol. 2000(2000), No. 60, pp. 1-10

Title: High-order mixed-type differential equations with weighted integral 
       boundary conditions

Author: M. Denche (Univ. Mentouri Constantine, Algeria)
 A. L. Marhoune (Univ. Mentouri Constantine, Algeria)
         
Abstract: 
 In this paper, we prove the existence and uniqueness of strong solutions 
 for high-order mixed-type problems with weighted integral boundary 
 conditions. The proof uses energy inequalities and the 
 density of the range of the operator generated.
  
Submitted March 27, 2000. Published September 21, 2000.
Math Subject Classifications: 35B45, 35G10, 35M10.
Key Words: Integral boundary condition; energy inequalities; 
           equation of mixed type.