摘要
本文研究了一类一阶差分方程周期边值问题-Δx(t)+q(t)x(t)=λa(t)x(t)+f(t,x(t)x(t)),t∈T^,x(0)=x(T)正解连通分支的振荡及无穷多个正解的存在性,其中λ>0是参数,T>2是整数,T^{0,1,…T-1},q:T^→[0,∞),a:T^→(0,∞),f:T^×R→R连续,f(t,0)=0.]主要结果的证明基于Rabinowitz全局分歧定理.
In this paper,we study the existence of infinite positive solutions and oscillation of connected component of positive solutions for the periodic boundary value problems of the first order difference equation-Δx(t)+q(t)x(t)=λa(t)x(t)+f(t,x(t)x(t)),t∈T^,x(0)=x(T),whereλ>0 is a parameter,T>2 is a integer,T^{0,1,…T-1},q:T^→[0,∞),a:T^→(0,∞),f:T^×R→R is continuous and f(t,0)=0]satisfies some conditions.The proof of the main results is based on the Rabinowitz global bifurcation theorems.
作者
苏肖肖
SU Xiao-Xiao(College of Mathematics and Statistics,Northwest Normal University, LanZhou 730070, China)
出处
《四川大学学报(自然科学版)》
CAS
CSCD
北大核心
2020年第2期231-235,共5页
Journal of Sichuan University(Natural Science Edition)
基金
国家自然科学基金(11671322)
关键词
差分方程
正解
连通分支
振荡
全局分歧定理
Difference equation
Positive solution
Connected component
Oscillation
Global bifurcation theorem