Positive Solutions of Second Order Discrete Problem on Infinite Intervals  

作　　者：Haiyi WU Tianlan CHEN 

机构地区：[1]Department of Mathematics,Northwest Normal University,Gansu 730070,P.R.China

出　　处：《Journal of Mathematical Research with Applications》2024年第4期511-520,共10页数学研究及应用（英文版）

基　　金：Supported by the National Natural Science Foundation of China(Grant No.12361040);the Department of Education University Innovation Fund of Gansu Province(Grant No.2021A-006)。

摘　　要：In this paper,by using the discrete Arzelá-Ascoli Lemma and the fixed-point theorem in cones,we discuss the existence of positive solutions of the following second order discrete Sturm-Liouville boundary value problem on infinite intervals■where Δu(x)=u(x+1)-u(x)is the forward difference operator,■is continuous,a>0,B and C are nonnegative constants.

关 键 词：positive solutions second order discrete problems infinite intervals fixed-point theorem in cones 

分 类 号：O177.91[理学—数学]