Communication in Biomathematical Sciences
Vol. 2 No. 2 (2019)

Dynamics of a Fractional-Order Predator-Prey Model with Infectious Diseases in Prey

Hasan S. Panigoro (Department of Mathematics, Faculty of Mathematics and Natural Sciences, University of Brawijaya, Malang)
Agus Suryanto (Department of Mathematics, Faculty of Mathematics and Natural Sciences, University of Brawijaya, Malang)
Wuryansari Muharini Kusumahwinahyu (Department of Mathematics, Faculty of Mathematics and Natural Sciences, University of Brawijaya, Malang)
Isnani Darti (Department of Mathematics, Faculty of Mathematics and Natural Sciences, State University of Gorontalo, Gorontalo)



Article Info

Publish Date
16 Dec 2019

Abstract

In this paper, a dynamical analysis of a fractional-order predator-prey model with infectious diseases in prey is performed. First, we prove the existence, uniqueness, non-negativity, and boundedness of the solution. We also show that the model has at most five equilibrium points, namely the origin, the infected prey and predator extinction point, the infected prey extinction point, the predator extinction point, and the co-existence point. For the first four equilibrium points, we show that the local stability properties of the fractional-order system are the same as the first-order system, but for the co-existence point, we have different local stability properties.We also present the global stability of each equilibrium points except for the origin point. We observe an interesting phenomenon, namely the occurrence of Hopf bifurcation around the co-existence equilibrium point driven by the order of fractional derivative. Moreover, we show some numerical simulations based on a predictor-corrector scheme to illustrate the result of our dynamical analysis.

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Journal Info

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Publisher

Subject

Social Sciences

Description

Full research articles in the area of Applications of Mathematics in biological processes and ...