Hopf bifurcation analysis of a food-limited population model with delay
โ Scribed by Aying Wan; Junjie Wei
- Publisher
- Elsevier Science
- Year
- 2010
- Tongue
- English
- Weight
- 707 KB
- Volume
- 11
- Category
- Article
- ISSN
- 1468-1218
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โฆ Synopsis
The dynamics of a food-limited population model with delay are investigated. We prove that a sequence of Hopf bifurcations occur at the positive equilibrium as the delay increases. An explicit algorithm for determining the direction of the Hopf bifurcation and the stability of the bifurcating periodic solutions is derived, using the theory of normal form and center manifold. Global existence of periodic solutions is established by using a global Hopf bifurcation result due to [J. Wu, Symmetric functional differential equations and neural networks with memory, Trans. Amer. Math. Soc. 350 (1998) 4799-4838].
๐ SIMILAR VOLUMES
With the help of a continuation theorem based on Gaines and Mawhin's coincidence degree, easily verifiable criteria are established for the global existence of positive periodic solutions of a foodlimited population model with toxicant and state dependent delays, that is , where r(t), k(t), a(t),