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Keywords:
boundary value problem; lower and upper solutions; degree theory; Ambrosetti-Prodi type theorem; coincidence degree; Nagumo functions; Ambrosetti-Prodi results
boundary value problem; lower and upper solutions; degree theory; Ambrosetti-Prodi type theorem; coincidence degree; Nagumo functions; Ambrosetti-Prodi results
Summary:
In the paper we prove an Ambrosetti-Prodi type result for solutions $u$ of the third-order nonlinear differential equation, satisfying $u'(0)=u'(1)=u(\eta)=0,\ 0\leq\eta \leq 1$.
References:
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