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In this paper, we study an age-structured model which has strong biological background about mosquito plasticity. Firstly, we prove the existence of solutions and the comparison principle for a generalized system. Then, we prove the…

偏微分方程分析 · 数学 2018-04-26 Lin Lin Li , Cláudia Pio Ferreira , Bedreddine Ainseba

We numerically address the stability analysis of linear age-structured population models with nonlocal diffusion, which arise naturally in describing dynamics of infectious diseases. Compared to Laplace diffusion, models with nonlocal…

数值分析 · 数学 2024-03-13 Dimitri Breda , Simone De Reggi , Rossana Vermiglio

We propose and analyze a nonlinear age-structured multi-species model that serves as a unifying framework for ecological and biotechnological systems in complex environments (microbial communities, bioreactors, and others). The formulation…

偏微分方程分析 · 数学 2025-09-23 Marius Bargo , Yacouba Simpore

Structured populations are ubiquitous across the biological sciences. Mathematical models of these populations allow us to understand how individual physiological traits drive the overall dynamics in aggregate. For example, linear age- or…

偏微分方程分析 · 数学 2022-04-25 Sabina L. Altus , Jeffrey C. Cameron , David M. Bortz

This paper presents an age-structured, non-autonomous logistic model describing the aquatic and adult stages of the dynamics of malaria-vector mosquitoes. We propose a biological control strategy targeting the aquatic compartment and…

偏微分方程分析 · 数学 2025-11-18 Marius Bargo , Yacouba Simpore

In this work, we consider a linear age-structured problem with diffusion and non-homogeneous boundary conditions both for the age and the space variables. We handle this linear problem by re-writing it as a non-densely defined abstract…

偏微分方程分析 · 数学 2021-05-18 Arnaud Ducrot , Pierre Magal , Alexandre Thorel

We consider linear age-structured population equations with diffusion. Supposing maximal regularity of the diffusion operator, we characterize the generator and its spectral properties of the associated strongly continuous semigroup. In…

偏微分方程分析 · 数学 2012-01-13 Christoph Walker

Malaria is one of the most common mosquito-borne diseases widespread in tropical and subtropical regions, causing thousands of deaths every year in the world. In a previous paper, we formulated an age-structured model containing three…

种群与进化 · 定量生物学 2024-05-24 Quentin Richard , Marc Choisy , Ramsès Djidjou-Demasse , Thierry Lefèvre

A deterministic nonlinear ordinary differential equation model for mosquito dynamics in which the mosquitoes can quest for blood either within a human population or within non-human/vertebrate populations is derived and studied. The model…

种群与进化 · 定量生物学 2024-12-10 Gideon A. Ngwa , Bime M. Ghakanyuy , Miranda I. Teboh-Ewungkem , Jacek Banasiak

In this work we consider a size-structured cannibalism model with the model ingredients (fertility, growth, and mortality rate) depending on size (ranging over an infinite domain) and on a general function of the standing population…

偏微分方程分析 · 数学 2019-03-25 Jozsef Z. Farkas , Thomas C. Hagen

In contrast to the many theoretical studies on the transmission of human-mosquitoes malaria infection, few studies have considered a multiple structure model formulations including (i) the chronological age of humans and mosquitoes…

偏微分方程分析 · 数学 2021-01-01 Quentin Richard , Marc Choisy , Thierry Lefèvre , Ramsès Djidjou-Demasse

We analyse the asymptotic behaviour of a nonlinear mathematical model of cellular proliferation which describes the production of blood cells in the bone marrow. This model takes the form of a system of two maturity structured partial…

偏微分方程分析 · 数学 2009-04-17 Mostafa Adimy , Fabien Crauste , Laurent Pujo-Menjouet

We demonstrate aging behavior in a simple non-linear system. Our model is a chaotic map which generates deterministically sub-diffusion. Asymptotic behaviors of the diffusion process are described using aging continuous time random walks,…

统计力学 · 物理学 2007-05-23 E. Barkai

We develop a mesoscopic model to study the plastic behavior of an amorphous material under cyclic loading. The model is depinning-like and driven by a disordered thresholds dynamics which are coupled by long-range elastic interactions. We…

软凝聚态物质 · 物理学 2023-08-07 Dheeraj Kumar , Sylvain Patinet , Craig E. Maloney , Ido Regev , Damien Vandembroucq , Muhittin Mungan

The evolutionary balance between innate and learned behaviors is highly intricate, and different organisms have found different solutions to this problem. We hypothesize that the emergence and exact form of learning behaviors is naturally…

神经元与认知 · 定量生物学 2023-03-14 Emmanouil Giannakakis , Sina Khajehabdollahi , Anna Levina

Recently, continuous-time dynamical systems, based on systems of ordinary differential equations, for mosquito populations are studied. In this paper we consider discrete-time dynamical system generated by an evolution quadratic operator of…

动力系统 · 数学 2018-03-06 U. A. Rozikov , M. V. Velasco

Motivated by structured parasite populations in aquaculture we consider a class of size-structured population models, where individuals may be recruited into the population with distributed states at birth. The mathematical model which…

偏微分方程分析 · 数学 2019-03-25 Jozsef Z. Farkas , Darren Green , Peter Hinow

A class of evolution quasistatic systems which leads, after a suitable time discretization, to recursive nonlinear programs, is considered and optimal control or identification problems governed by such systems are investigated. The…

最优化与控制 · 数学 2014-11-19 L. Adam , J. V. Outrata , T. Roubicek

In this paper, we investigate an eigenvalue problem associated with an age-structured operator incorporating random diffusion and advection. Our primary focus is on examining the asymptotic behaviors of the principal eigenvalue with respect…

偏微分方程分析 · 数学 2025-12-16 Hao Kang , Rui Peng , Maolin Zhou

This paper investigates a nonlinear logistic model for age-structured population dynamics. The model incorporates interdependent fertility and mortality functions within a logistic framework, offering insights into stationary solutions and…

偏微分方程分析 · 数学 2025-11-24 Dragos-Patru Covei
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