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浙江大学学报(理学版)  2022, Vol. 49 Issue (1): 41-48    DOI: 10.3785/j.issn.1008-9497.2022.01.006
数学与计算机科学     
具正负系数和多变时滞的高阶非线性中立型差分方程非振动解的存在性
张萍1(),覃桂茳2,杨甲山2()
1.邵阳学院 理学院, 湖南 邵阳 422004
2.梧州学院 大数据与软件工程学院, 广西 梧州 543002
Existence of nonoscillatory solutions of higher order nonlinear neutral difference equations with positive and negative coefficients and multiple variable delays
Ping ZHANG1(),Guijiang QIN2,Jiashan YANG2()
1.School of Science, Shaoyang University, Shaoyang 422004, Hunan Province, China
2.School of Data Science and Software Engineering, Wuzhou University, Wuzhou 543002, Guangxi Zhuang Autonomous Region, China
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摘要:

利用Banach空间的不动点原理和不等式技巧,研究具正负系数和多变时滞的高阶非线性中立型差分方程正解的存在性,在一定条件下,建立了该方程的新的非振动准则,所得结论推广并改进了一系列已有结果。

关键词: 正负系数多变时滞高阶非线性中立型差分方程非振动不动点定理    
Abstract:

By using the fixed point theorem in Banach space and the inequality technique,we discuss the existence of positive solution for a class of higher order nonlinear neutral difference equations with positive and negative coefficients and multiple variable delays.Under certain conditions,we establish a few new nonoscillation criteria.Our results improve and extend some known results.

Key words: positive and negative coefficient    multiple variable delays    higher order nonlinear neutral difference equations    nonoscillation    fixed point theorem
收稿日期: 2020-10-25 出版日期: 2022-01-18
CLC:  O 175.7  
基金资助: 国家自然科学基金资助项目(51765060);湖南省教育厅一般项目(20C1683);广西高校中青年教师基础能力提升项目(2018KY0543)
通讯作者: 杨甲山     E-mail: 411451097@qq.com;syxyyjs@163.com
作者简介: 张萍(1981—),ORCD:https://orcid.org/0000-0002-2142-6057,女,硕士,副教授,主要从事微分方程理论与应用研究,E-mail:411451097@qq.com.
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引用本文:

张萍,覃桂茳,杨甲山. 具正负系数和多变时滞的高阶非线性中立型差分方程非振动解的存在性[J]. 浙江大学学报(理学版), 2022, 49(1): 41-48.

Ping ZHANG,Guijiang QIN,Jiashan YANG. Existence of nonoscillatory solutions of higher order nonlinear neutral difference equations with positive and negative coefficients and multiple variable delays. Journal of Zhejiang University (Science Edition), 2022, 49(1): 41-48.

链接本文:

https://www.zjujournals.com/sci/CN/10.3785/j.issn.1008-9497.2022.01.006        https://www.zjujournals.com/sci/CN/Y2022/V49/I1/41

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