On a new fractional-order Logistic model with feedback control
Applied Mathematics • 2021
معلومات البحث
المؤلفون
Tuan Manh Hoang; A. M. Nagy
الكلمات المفتاحية
Not Available
المجلة العلمية
Applied Mathematics
الناشر
Springer
المجلد
36
العدد
3
الصفحات
390-402
publication.type
International
رابط البحث
Open Link
المواد المرفقة
Not Available
الملخص
In this paper, we formulate and analyze a new fractional-order Logistic model with feedback control, which is different from a recognized mathematical model proposed in our very recent work. Asymptotic stability of the proposed model and its numerical solutions are studied rigorously. By using the Lyapunov direct method for fractional dynamical systems and a suitable Lyapunov function, we show that a unique positive equilibrium point of the new model is asymptotically stable. As an important consequence of this, we obtain a new mathematical model in which the feedback control variables only change the position of the unique positive equilibrium point of the original model but retain its asymptotic stability. Furthermore, we construct unconditionally positive nonstandard finite difference (NSFD) schemes for the proposed model using the Mickens’ methodology. It is worth noting that the constructed NSFD schemes not only preserve the positivity but also provide reliable numerical solutions that correctly reflect the dynamics of the new fractional-order model. Finally, we report some numerical examples to support and illustrate the theoretical results. The results indicate that there is a good agreement between the theoretical results and numerical ones.
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