具有两种不同延迟的分数阶逻辑方程的动态分析

H. A. A. El-Saka, D. El. A. El-Sherbeny, A. M. A. El-Sayed
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引用次数: 0

摘要

本文分析了具有两个不同延迟 \(\tau _{1}, \tau _{2}>0\) 的分数阶逻辑方程的稳定性和霍普夫分岔:\(D^{α }y(t)=\rho y(t-\tau _{1})\left( 1-y(t-\tau _{2})\right)\),\(t>0\),\(\rho >0\).我们用临界曲线来描述稳定区域。我们探讨了分数阶(α)、(rho)和时间延迟如何影响模型的稳定性和霍普夫分岔。然后,通过选择\(\rho \)、分数阶数\(\alpha \)和时间延迟作为分岔参数,研究了霍普夫分岔的存在性。亚当斯型预测器-校正器方法被扩展用于求解涉及两种不同延迟的分数阶微分方程。最后,给出了数值模拟来说明理论结果的有效性和可行性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

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Dynamic analysis of the fractional-order logistic equation with two different delays

In this paper, we analyze the stability and Hopf bifurcation of the fractional-order logistic equation with two different delays \(\tau _{1}, \tau _{2}>0\): \(D^{\alpha }y(t)=\rho y(t-\tau _{1})\left( 1-y(t-\tau _{2})\right) \), \(t>0\), \(\rho >0\). We describe stability regions by using critical curves. We explore how the fractional order \(\alpha \), \(\rho \), and time delays influence the stability and Hopf bifurcation of the model. Then, by choosing \(\rho \), fractional order \(\alpha \), and time delays as bifurcation parameters, the existence of Hopf bifurcation is studied. An Adams-type predictor–corrector method is extended to solve fractional-order differential equations involving two different delays. Finally, numerical simulations are given to illustrate the effectiveness and feasibility of theoretical results.

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来源期刊
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11.50%
发文量
352
期刊介绍: Computational & Applied Mathematics began to be published in 1981. This journal was conceived as the main scientific publication of SBMAC (Brazilian Society of Computational and Applied Mathematics). The objective of the journal is the publication of original research in Applied and Computational Mathematics, with interfaces in Physics, Engineering, Chemistry, Biology, Operations Research, Statistics, Social Sciences and Economy. The journal has the usual quality standards of scientific international journals and we aim high level of contributions in terms of originality, depth and relevance.
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