摘要
主要研究了具有奇异正定超线性周期边值问题正解的存在性问题,利用Leray-Schauder抉择定理给出了奇异正定超线性周期边值问题-(p(t)x′)′+q(t)x=f(t,x),t∈I=[0,1],x(0)=x(1),x[1](0)=x[1](1).(1.1)的正解的存在性,其中非线性项f(t,x)在x=∞点处超线性,在x=0处具有奇性。
In this paper, we are devoted to establish the positive solutions to positone superlinear singular equations with periodic boundary conditions {-(p(t)x')'+q(t)x=f(t,x),t∈I=[0,1],x(0)=x(1),x^[1](0)=x^[1](1)(1.1) nonlinearity f( t, x ) may be superlinear at x = ∞ and singular at x = 0. The proof relies on nonlinear the alternative theorem of Leray - Schauder.
基金
国家自然科学基金资助项目(10571021)