Mathematical modelling and analysis of two-component system with Caputo fractional derivative order

作者：Owolabi Kolade M^*

来源：Chaos Solitons & Fractals, 2017, 103: 544-554.

DOI：10.1016/j.chaos.2017.07.013

• Caputo derivative
• Exponential integrator
• Fractional reaction-diffusion
• Hopf bifurcation
• Oscillations
• Predator-prey system
• Stability analysis

A class of generic spatially extended fractional reaction-diffusion systems that modelled predator-prey interactions is considered. The first order time derivative is replaced with the Caputo fractional derivative of order gamma is an element of (0, 1). The local analysis where the equilibrium points and their stability behaviours are determined is based on the adoption of qualitative theory for dynamical systems ordinary differential equations. We derived conditions for Hopf bifurcation analytically. Most significantly, existence conditions for a unique stable limit cycle in the phase plane are determined analytically. Our analytical findings are in agreement with the numerical results presented in one and two dimensions. The system of fractional nonlinear reaction-diffusion equations has demonstrated the usefulness of understanding the dynamics of nonlinear phenomena.

• 出版日期2017-10