Acta mathematica scientia,Series A ›› 2022, Vol. 42 ›› Issue (2): 570-582.

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Hopf Bifurcation for a Fractional Differential-Algebraic Predator-Prey System with Time Delay and Economic Profit

Daoxiang Zhang,Ben Li,Dandan Chen,Yating Lin,Xinmei Wang   

  1. School of Mathematics and Statistics, Anhui Normal University, Wuhu Anhui 241002
  • Received:2020-11-30 Online:2022-04-26 Published:2022-04-18
  • Supported by:
    the NSFC(11671013);the NSFC(11302002);the NSF of Anhui Province(2008085MA13)

Abstract:

A fractional differential-algebraic biological economic system with harvest and time delay is firstly proposed and investigated in this paper. By using the Hopf bifurcation theory, some sufficient conditions for the existence of Hopf bifurcation induced by delay are obtained. The results show that in the case of zero economic profit, the biological equilibrium point of the system is asymptotically stable. Under positive economic profit condition, the system produces limit cycles at the positive equilibrium point as the delay increases through a certain threshold. It is found that fractional exponent, economic interest and delay can affect the other dynamic behavior of the system through some numerical simulations.

Key words: Fractional system, Hopf bifurcation, Time delay

CLC Number: 

  • O175.1
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