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Zbl 1175.37084
El-Saka, H.A.; Ahmed, E.; Shehata, M.I.; El-Sayed, A.M.A.
On stability, persistence, and Hopf bifurcation in fractional order dynamical systems. (English)
[J] Nonlinear Dyn. 56, No. 1-2, 121-126 (2009). ISSN 0924-090X; ISSN 1573-269X/e

Motivation for the investigations of fractional order dynamical systems is explained by rich applications in mathematical biology [{\it A. M. Nakhushev}, Equations of mathematical biology. Moskva: Vysshaya Shkola (1995; Zbl 0991.35500)]. Therefore it is essential to study bifurcation, stability and chaos in fractional order dynamical systems. Since persistence and seasonability are important concepts in biology, it is relevant to study the persistence in biologically motivated nonautonomous fractional equations. \par In this article after some relations between complex adaptive systems and fractional mathematics sufficient conditions for the persistence of some biologically inspired fractional nonautonomous equations are derived. Then Poincaré-Andronov-Hopf bifurcation in fractional order systems is studied. Also the local stability questions in functional equations are considered.
[Irina V. Konopleva (Ul'yanovsk)]

MSC 2000:: *37N25 Dynamical systems in biology
92B99 Mathematical biology
37J40 Perturbations, etc.

Keywords: dynamical systems of fractional order; bifurcation

Citations: Zbl 0991.35500

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