Nonlinear n-Order m-Point Semipositive Boundary Value Problems and Applications

In our paper, we consider the positive solutions of the nonlinear n -order m -point semipositive BVP. In this BVP equation, we allow that f can change the symbol for 0 < t < 1 ; by using the fixed point index theory, the existence of positive solutions and many positive solutions are obtained under the condition that f is superlinear or sublinear.

Abstract licence: CC BY

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