Directory UMM :Journals:Journal_of_mathematics:EJQTDE:
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Fixed point index theorems have been applied to various boundary value problems to show the existence of multiple positive solutions.. In Section 2, we provide some
In this paper, we study the existence of triple positive solutions for second-order four-point boundary value problem with sign changing nonlinearities.. We first study the
For recent works on positive symmetric solutions of two–point boundary value prob- lems involving singular and/or semipositone nonlinearities, we refer the reader to [1] – [4],
Zhang The existence of countably many positive solutions for nonlinear singular m − point boundary value problems on the half line, J.. Wang, The existence of multiple
Zhang, The existence of countably many positive solutions for nonlinear singular m- point boundary value problems on time scales, J. Zhang, The existence of three positive solutions
Sun, Optimal existence criteria for symmetric positive solutions to a singular three-point boundary value problem, Nonlinear Anal. Webb, Positive solutions of some higher order
Abstract : In this paper, we prove the existence of positive solutions for Floquet boundary value problem concerning fractional functional differential equations with bounded
For example, once we find some a priori upper and lower estimates for positive solutions of a certain boundary value problem, we can use them together with the Krasnosell’skii
