Solvability of Neumann boundary-value problems with Caratheodory nonlinearities

We propose a sufficient condition, on the nonlinear term, for the existence of solutions. This new condition is weaker than the usual sign condition and than the assumption on the existence of constant upper and lower solutions.

Bibliographic Details
Main Authors: Abdelkader Boucherif, Nawal Al-Malki
Format: Article
Language:English
Published: Texas State University 2004-04-01
Series:Electronic Journal of Differential Equations
Subjects:
Online Access:http://ejde.math.txstate.edu/Volumes/2004/51/abstr.html