International Journal of Mathematics and Mathematical Sciences
Volume 13 (1990), Issue 4, Pages 651-660
doi:10.1155/S0161171290000904
Regular eigenvalue problem with eigenparameter contained in the equation and the boundary conditions
E.M.E. Zayed1
and S.F.M. Ibrahim2
1Department of Mathematics, Faculty of Science, University of Emirates, P.O. Box 15551, Al-Ain, United Arab Emirates
2Department of Mathematics, Faculty of Education, Ain Shams University, Heliopolis, Cairo, Egypt
Abstract
The purpose of this paper is to establish the expansion theorem for a regular right-definite eigenvalue problem for the Laplace operator in Rn, (n≥2) with an eigenvalue parameter λ contained in the equation and the Robin boundary conditions on two “parts” of a smooth boundary of a simply connected bounded domain.