Stability and persistence in ODE models for populations with many stages

Guihong Fan, Yijun Lou, Horst Thieme, Jianhong Wu

Research output: Contribution to journalArticle

7 Scopus citations

Abstract

A model of ordinary differential equations is formulated for populations which are structured by many stages. The model is motivated by ticks which are vectors of infectious diseases, but is general enough to apply to many other species. Our analysis identifies a basic reproduction number that acts as a threshold between population extinction and persistence. We establish conditions for the existence and uniqueness of nonzero equilibria and show that their local stability cannot be expected in general. Boundedness of solutions remains an open problem though we give some sufficient conditions.

Original languageEnglish (US)
Pages (from-to)661-686
Number of pages26
JournalMathematical Biosciences and Engineering
Volume12
Issue number4
DOIs
StatePublished - Aug 1 2015

Keywords

  • And stability)
  • Basic reproduction number
  • Boundedness
  • Equilibria (existence
  • Extinction
  • Lyapunov functions
  • Persistence
  • Uniqueness

ASJC Scopus subject areas

  • Modeling and Simulation
  • Agricultural and Biological Sciences(all)
  • Computational Mathematics
  • Applied Mathematics

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