Global bifurcation results for a delay differential system representing a chemostat model

IF 2.3 2区 数学 Q1 MATHEMATICS Journal of Differential Equations Pub Date : 2025-07-25 Epub Date: 2025-03-19 DOI:10.1016/j.jde.2025.113222
Pablo Amster , Pierluigi Benevieri
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引用次数: 0

Abstract

This paper studies a one-species chemostat model described by a system of differential delay equations, featuring a periodic input of a single nutrient with period ω. The delay represents the interval time between the consumption of the nutrient and its metabolization by the microbial species. We obtain global bifurcation results for the periodic solutions with period ω. Our proof is based on the application of the topological degree theory combined with a Whyburn-type Lemma.
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一类时滞微分系统的全局分岔结果
本文研究了一个由时滞微分方程组描述的单物种恒化模型,该模型具有周期为ω的单一营养物质的周期输入。延迟表示营养物质消耗和微生物代谢之间的间隔时间。得到了周期为ω的周期解的全局分岔结果。我们的证明是基于拓扑度理论和一个whyburn型引理的应用。
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来源期刊
CiteScore
4.40
自引率
8.30%
发文量
543
审稿时长
9 months
期刊介绍: The Journal of Differential Equations is concerned with the theory and the application of differential equations. The articles published are addressed not only to mathematicians but also to those engineers, physicists, and other scientists for whom differential equations are valuable research tools. Research Areas Include: • Mathematical control theory • Ordinary differential equations • Partial differential equations • Stochastic differential equations • Topological dynamics • Related topics
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