期刊信息
- 刊名: 河北师范大学学报(自然科学版)Journal of Hebei Normal University (Natural Science)
- 主办: 河北师范大学
- ISSN: 1000-5854
- CN: 13-1061/N
- 中国科技核心期刊
- 中国期刊方阵入选期刊
- 中国高校优秀科技期刊
- 华北优秀期刊
- 河北省优秀科技期刊
一类中立型差分方程正解的存在性
-
1. 石家庄铁路职业技术学院 基础部, 河北 石家庄 050041;
2.河北师范大学 校园规划建设处, 河北 石家庄 050016 -
DOI:
Existence of Positive Solutions for a Class of Neutral Difference Equations
摘要/Abstract
摘要:
利用在集合上定义映射和Knaster不动点原理,讨论了奇数阶多滞量中立型差分方程Δm[x(n)-x(n-τ)]+∑Li=1qi(n)x(n-σi)=0有界正解的存在性,得出了相应方程有界正解存在的充要条件.
Abstract:
The existence of positive solution for odd neutral difference equation is investigated by using Knoaster unfixed-point theory and defining the compressed injection on a set.Some sufficient and necessary conditions for existence of a positive solution about corresponding equation Δm[x(n)-x(n-τ)]+∑Li=1qi(n)x(n-σi)=0 are obtained.
关键词
Key words:
neutral difference equation
;
eventually positive solution
;
much retard