涉及中性项的延迟分数阶神经网络的动态分岔

IF 2.1 3区 数学 Q1 MATHEMATICS, APPLIED
Chengdai Huang, Lei Fu, Shuang Liu, Jinde Cao, Mahmoud Abdel-Aty, Heng Liu
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引用次数: 0

摘要

在克拉默法则的帮助下,很好地探讨了具有中性延迟的分数阶神经网络的稳定性和分岔问题。首先构建了三神经元中性型分数阶神经网络(NTFONN)。其次,使用卡普托分数阶导数的拉普拉斯变换。然后,利用特征方程解析法和克拉默法则,得到霍普夫分岔的存在性。此外,研究还表明,中性延迟在 NTFONN 中保持网络稳定和控制霍普夫分岔的发生方面起着非常重要的作用。研究进一步发现,与相应的整数阶 NTFONN 相比,所设计的 NTFONN 具有出色的稳定性能。最后,通过数值模拟证实了所获结果的可行性和有效性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Dynamical bifurcations in a delayed fractional-order neural network involving neutral terms

The stability and bifurcations of a fractional-order neural network with a neutral delay are nicely contemplated with the help of the Cramer's rule. The three-neuron neutral-type fractional-order neural network (NTFONN) is firstly constructed. Secondly, the Laplace transform of the Caputo fractional-order derivatives is used. Afterward, using the analytical method of characteristic equations and Cramer's rule, the existence of Hopf bifurcations is obtained. Moreover, it indicates that the neutral delay plays an enormously significant role in remaining network stabilization and controlling the occurrence of Hopf bifurcations in NTFONN. It further detects that the devised NTFONN has outstanding stability performance in comparison with the corresponding integer-order one. Finally, numerical simulations are developed to confirm the feasibility and validity of the obtained results.

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来源期刊
CiteScore
4.90
自引率
6.90%
发文量
798
审稿时长
6 months
期刊介绍: Mathematical Methods in the Applied Sciences publishes papers dealing with new mathematical methods for the consideration of linear and non-linear, direct and inverse problems for physical relevant processes over time- and space- varying media under certain initial, boundary, transition conditions etc. Papers dealing with biomathematical content, population dynamics and network problems are most welcome. Mathematical Methods in the Applied Sciences is an interdisciplinary journal: therefore, all manuscripts must be written to be accessible to a broad scientific but mathematically advanced audience. All papers must contain carefully written introduction and conclusion sections, which should include a clear exposition of the underlying scientific problem, a summary of the mathematical results and the tools used in deriving the results. Furthermore, the scientific importance of the manuscript and its conclusions should be made clear. Papers dealing with numerical processes or which contain only the application of well established methods will not be accepted. Because of the broad scope of the journal, authors should minimize the use of technical jargon from their subfield in order to increase the accessibility of their paper and appeal to a wider readership. If technical terms are necessary, authors should define them clearly so that the main ideas are understandable also to readers not working in the same subfield.
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