应用集值增算子的不动点定理和拓扑度理论研究Nagumo条件下二阶积分边值问题-x''=f(t,x,x'),t∈I=[0,1]x(0)=∫10x(t)dα(t),x(1)=∫10x(t)dβ(t)的多解,其中 f ∈ C([0,1]×R~2,R)。
In this paper,by using of fixed point theorem for set-valued increasing operator and topological degree theory,we are concerned with the existence of multiple solutions for the following second-order integral boundary value problem under Nagumo conditions:-x''=f(t,x,x'),t∈I=[0,1]x(0)=∫10x(t)dα(t),x(1)=∫10x(t)dβ(t)where f ∈ C([0,1]×R~2,R).