Abstract:

We studied the existence of multiple positive solutions for the nonlocal boundary value problems of a type of nonlinear second order differential equations with integral boundary conditions. By means of fixedpoint theorem in double cones, the existence of, at least, two positive solutions to the boundary value problem is obtained under the condition of nonlinear term to be allowed to change sign.

Key words: integral boundary value problem, a fixedpoint theorem in double cones； positive solutions； existence