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中国工业与应用数学学会会刊
主管:中华人民共和国教育部
主办:西安交通大学
ISSN 1005-3085  CN 61-1269/O1

工程数学学报 ›› 2022, Vol. 39 ›› Issue (2): 292-308.doi: 10.3969/j.issn.1005-3085.2022.02.009

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时间尺度上具有次线性中立项的三阶 Emden-Fowler 时滞动力方程的振动性

仉志余1,   冯瑞华2   

  1. 1. 太原工业学院理学系,太原 030008
    2. 中北大学理学院,太原 030051
  • 出版日期:2022-04-15 发布日期:2022-06-15
  • 基金资助:
    国家自然科学基金 (11701528; 11647034);山西省自然科学基金 (2011011002-3).

Oscillation of Third-order Nonlinear Emden-Fowler Delay Dynamic Equation with a Sublinear Neutral Term on Time Scales

ZHANG Zhiyu1,   FENG Ruihua2   

  1. 1. Department of Science, Taiyuan Institute of Technology, Taiyuan 030008
    2. School of Science, North University of China, Taiyuan 030051
  • Online:2022-04-15 Published:2022-06-15
  • Supported by:
    The National Natural Science Foundation of China (11701528; 11647034); the Natural Science Foundation of Shanxi Province (2011011002-3).

摘要:

判定时间尺度上时滞动力方程的振动性和渐近性在数学物理、自动控制理论及工程、传染病模型分析和桥梁设计等诸多领域具有重要作用。针对时间尺度上具有次线性中立项的三阶 Emden-Fowler 时滞动力方程的振动性和渐近性开展研究,利用时间尺度上的微积分理论,广义 Riccati 变换和不等式技巧,获得了该方程两个振动定理,改进和推广了已有文献的相应结果,并给出了两个实例验证了新定理的有效性。

关键词: 时间尺度, 次线性中立项, 时滞, 动力方程, 振动性

Abstract:

Judging the oscillation and asymptotic behavior of delay dynamic equations on time scale plays an important role in mathematical physics, automatic control theory and engineering, infectious disease model analysis, bridge design and so on. Thus, the oscillation behavior of third-order nonlinear Emden-Fowler type delay dynamic equation with a sublinear neutral term on time scales are investigated. By using the dynamic calculus on time scales, generalized Riccati transformation and inequality technique, two oscillation theorems to ensure that every solution of the equation oscillates or converges to zero are obtained. These results extend and improve the results established in previous literatures. Finally, the effectiveness of the theoretical results obtained here are illustrated with two examples.

Key words: time scale, sublinear neutral term, time delay, dynamic equation, oscillation

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