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奇异二阶微分系统离散边值问题
Discrete Boundary Value Problems of Singular Second Order Differential Systems
【摘要】 利用锥不动点定理给出了奇异离散边值问题{Δ2x(i-1)+q1(i)f1(i,x(i),y(i))=0,i∈{1,2,…,T}Δ2y(i-1)+q2(i)f2(i,x(i),y(i))=0,x(0)=x(T+1)=y(0)=y(T+1)=0,的正解的存在性,其中非线性项fk(i,x,y)在(x,y)=(0,0)点奇异,k=1,2.
【Abstract】 In this paper we investigates the existence of positive solutions to the singular discrete boundary value problem{Δ2x(i-1)+q1(i) f1(i,x(i),y(i))=0, i∈{1,2,...,T},Δ2y(i-1)+q2(i) f2(i,x(i),y(i))=0,x(0)=x(T+1)=y(0)=y(T+1)=0,by using cone fixed point theorem, where nonlinear term fk(i,x,y) is singular at (x,y)=(0,0),k=1,2.
【关键词】 正解;
奇异;
存在性;
离散边值问题;
锥不动点定理;
【Key words】 Positive solutions; singularity; existence; discrete boundary value problem; fixed point theorem in cones;
【Key words】 Positive solutions; singularity; existence; discrete boundary value problem; fixed point theorem in cones;
【基金】 国家自然科学基金资助项目(10571021)
- 【文献出处】 新疆大学学报(自然科学版) ,Journal of Xinjiang University(Natural Science Edition) , 编辑部邮箱 ,2008年03期
- 【分类号】O175.8
- 【下载频次】31