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Positive Solutions for Nonlinear Fifth-Order Differential Equations with Nonlocal Boundary Conditions

Amir Elhaffaf, Mostepha Naceri


In this paper, some conditions are derived on the nonlinear function f(u) so that two boundary value problems associated with the fifth-order dierential equation u^(5)(t) = f(u) have one or more positive solutions.


Fifth-order differential equations, boundary value problems, fixed point theorems.

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