二阶非线性中立型差分方程非振动解的存在性  

The Existence of Non-oscillatory Solutions for Second-order Nonlinear Neutral Difference Equations

作　　者：郑允利[1] ZHENG Yunli(Foundational Department,Xuzhou Vocational College of Bioengineering,Xuzhou 221006,China)

机构地区：[1]徐州生物工程职业技术学院基础部,江苏徐州221006

出　　处：《常熟理工学院学报》2021年第2期111-114,共4页Journal of Changshu Institute of Technology

摘　　要：利用不动点原理研究了一类二阶中立型差分方程非振动解的存在性问题,获得了该方程非振动解存在的两个充分条件,推广和改进了已有文献中的研究成果.A class of the second-order nonlinear neutral difference equations is studied by using the fixed point theorem,and two sufficient conditions are obtained for the existence of non-oscillatory solutions of the equation.These criteria extend and improve some existing results in the literature.

关 键 词：中立型差分方程 非振动解 存在性 

分 类 号：O175.7[理学—数学]