Practical persistence for differential delay models of population interactions

Practical persistence refers to determining specific estimates in terms of model data for the asymptotic distance to the boundary of the feasible region for uniformly persistent population interaction models. In this paper we illustrate practical persistence by computing, using multiple Liapunov fun...

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Main Authors: Yulin Cao, Thomas C. Gard
Format: Article
Language:English
Published: Texas State University 1998-11-01
Series:Electronic Journal of Differential Equations
Subjects:
Online Access:http://ejde.math.txstate.edu/conf-proc/01/c1/abstr.html
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author Yulin Cao
Thomas C. Gard
author_facet Yulin Cao
Thomas C. Gard
author_sort Yulin Cao
collection DOAJ
description Practical persistence refers to determining specific estimates in terms of model data for the asymptotic distance to the boundary of the feasible region for uniformly persistent population interaction models. In this paper we illustrate practical persistence by computing, using multiple Liapunov functions, such estimates for a few basic examples of competition and predator-prey type which may include time delays in the net per capita growth rates.
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spelling doaj.art-8c3696fbd047470194ba1cf96cb861b62022-12-22T03:28:30ZengTexas State UniversityElectronic Journal of Differential Equations1072-66911998-11-01Conference014153Practical persistence for differential delay models of population interactionsYulin CaoThomas C. GardPractical persistence refers to determining specific estimates in terms of model data for the asymptotic distance to the boundary of the feasible region for uniformly persistent population interaction models. In this paper we illustrate practical persistence by computing, using multiple Liapunov functions, such estimates for a few basic examples of competition and predator-prey type which may include time delays in the net per capita growth rates.http://ejde.math.txstate.edu/conf-proc/01/c1/abstr.htmlUniform persistencepractical persistenceKolmogorov population modelsretarded functional differential equations.
spellingShingle Yulin Cao
Thomas C. Gard
Practical persistence for differential delay models of population interactions
Electronic Journal of Differential Equations
Uniform persistence
practical persistence
Kolmogorov population models
retarded functional differential equations.
title Practical persistence for differential delay models of population interactions
title_full Practical persistence for differential delay models of population interactions
title_fullStr Practical persistence for differential delay models of population interactions
title_full_unstemmed Practical persistence for differential delay models of population interactions
title_short Practical persistence for differential delay models of population interactions
title_sort practical persistence for differential delay models of population interactions
topic Uniform persistence
practical persistence
Kolmogorov population models
retarded functional differential equations.
url http://ejde.math.txstate.edu/conf-proc/01/c1/abstr.html
work_keys_str_mv AT yulincao practicalpersistencefordifferentialdelaymodelsofpopulationinteractions
AT thomascgard practicalpersistencefordifferentialdelaymodelsofpopulationinteractions