Multiplicity results for three-point boundary value problems with a non-well-ordered upper and lower solution condition
In this paper, under the assumption of non-well-ordered upper and lower solutions, some multiplicity results for solutions of some three-point boundary value problems are obtained using the fixed point index theory. (c) 2006 Elsevier Ltd. All rights reserved.
three-point boundary value problem non-well-ordered upper and lower solutions the fixed point index