Multiple sign-changing solutions for some m-point boundary-value problems.
Multiple positive solutions for singular semi-positone delay differential equation.
Multiple sign-changing solutions for sub-linear impulsive three-point boundary-value problems.
Existence and multiplicity of solutions for some three-point nonlinear boundary value problems.
Multiplicity results for sign-changing solutions of an operator equation in ordered Banach space
In this paper, we prove some multiplicity results for sign-changing solutions of an operator equation in an ordered Banach space. The methods to show the main results of the paper are to associate a fixed point index with a strict upper or lower solution. The results can be applied to a wide variety of boundary value problems to obtain multiplicity results for sign-changing solutions.
Multiplicity results via topological degree for impulsive boundary value problems under non-well-ordered upper and lower solution conditions.
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