期刊
MATHEMATICS AND COMPUTERS IN SIMULATION
卷 181, 期 -, 页码 562-580出版社
ELSEVIER
DOI: 10.1016/j.matcom.2020.10.013
关键词
Predator-prey system; Stability; Hopf bifurcation; Fractional order; Nonidentical delays
类别
资金
- National Natural Science Foundation of China [62073172, 61573194]
- Natural Science Foundation of Jiangsu Province of China [BK2012741]
- Natural Science Foundation of Jiangsu Higher Education Institutions of China [19KJB110017]
- Key Scientific Research Project for Colleges and Universities of Henan Province, China [20A110004]
- Nanhu Scholars Program for Young Scholars of Xinyang Normal University, China
This research discusses bifurcation in a fractional order predator-prey system with two nonidentical delays. Critical delay values for Hopf bifurcation were calculated, and the effects of fractional order and additional delay on the bifurcation point were explored, showing that stability performance is greatly affected by these factors. The study suggests that the generation of Hopf bifurcation can be accelerated with an increase in fractional order and additional delay.
In this paper, the subject of bifurcation for a fractional order predator-prey system involving two nonidentical delays is nicely discussed. The critical values of delays for Hopf bifurcation are exactly calculated for the proposed model by using two nonidentical delays as bifurcation parameter, respectively. In addition, the effects of fractional order and additional delay on the bifurcation point are delicately explored. It detects that the stability performance is extremely pulverized with the enhancement of fractional order and another delay. This hints that the generation of Hopf bifurcation can be advanced as fractional order and another delay increase. The final numerical simulations gauge the correctness of the developed theoretical analysis. (C) 2020 International Association for Mathematics and Computers in Simulation (IMACS). Published by Elsevier B.V. All rights reserved.
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