Title
Global asymptotic behavior of a chemostat model with two perfectly complementary resources and distributed delay
Abstract
A model of the chemostat involving two species of microorganisms competing for two perfectly complementary, growth-limiting nutrients is considered. The model incorporates distributed time delay in the form of integral differential equations in order to describe the time involved in converting nutrient to biomass. The delays are included in the nutrient and species concentrations simultaneously. A general class of monotone increasing functions is used to describe nutrient uptake. Sufficient conditions based on biologically meaningful parameters in the model are given that predict competitive exclusion for certain parameter ranges and coexistence for others. We prove that the global asymptotic attractivity of steady states of the model is similar to that of the corresponding model without time delays. However, our results indicate that when the inherent delays are in fact large, ignoring them may result in incorrect predictions.
Year
DOI
Venue
2000
10.1137/S0036139999359756
SIAM Journal of Applied Mathematics
Keywords
Field
DocType
integral differential equations,distributed delays,perfectly complementary resources,competition,chemostat,competitive exclusion,coexistence,global asymptotic behavior
Chemostat,Mathematical optimization,Integral differential equations,Asymptotic analysis,Monotone polygon,Mathematics
Journal
Volume
Issue
ISSN
60
6
0036-1399
Citations 
PageRank 
References 
10
1.67
5
Authors
3
Name
Order
Citations
PageRank
Bingtuan Li1359.86
GAIL S. K. WOLKOWICZ27719.91
Yang Kuang3246.49