Dynamical study of two predators and one prey system with fractional Fourier transform method. Issue 5 (2nd November 2017)

• Record Type: Journal Article
• Authors: Owolabi, Kolade M.; Pindza, Edson; Davison, Matt
• Is Part Of: Numerical methods for partial differential equations. Volume 34:Issue 5(2018)
• Page Start: 1614
• Page End: 1636
• Publication Date: 2017-11-02
• Subjects: coexistence -- exponential time differencing method -- fractional Fourier transform -- global and local stability -- nonlinear -- predator‐prey model -- reaction‐diffusion system; Differential equations, Partial -- Numerical solutions -- Periodicals; 515.353
• DOI: 10.1002/num.22205
• Languages: English
• ISSNs: 0749-159X

Abstract

Abstract : In this work, we investigate both the analytical and numerical studies of the dynamical model comprising of three species systems. We analyze the linear stability of stationary solutions in the one‐dimensional multisystem modeling the interactions of two predators and one prey species. The stability analysis has a lot of implications for understanding the various spatiotemporal and chaotic behaviors of the species in the spatial domain. The analysis results presented have established the possibility of the three‐interacting species to coexist harmoniously, this feat is achieved by combining the local and global analyses to determine the global dynamics of the system. In the presence of a fractional diffusion term, we introduced a fractional Fourier transform for solving the system modeled by fractional partial differential equations. The main advantages of this method are that it yields a fully diagonal representation of the fractional operator with exponential accuracy and a completely straightforward extension to high spatial dimensions. The scheme is described in detail and justified by a number of computational experiments.