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Biological systems are majorly dependent on their property of bistability in order to exhibit nongenetic heterogeneity in terms of cellular morphology and physiology. Spatial patterns of phenotypically heterogeneous cells, arising due to…

定量方法 · 定量生物学 2023-01-25 Priya Chakraborty , Ushasi Roy , Mohit K. Jolly , Sayantari Ghosh

We propose and investigate a discrete-time predator-prey system with cooperative hunting in the predator population. The model is constructed from the classical Nicholson-Bailey host-parasitoid system with density dependent growth rate. A…

动力系统 · 数学 2018-08-02 Yunshyong Chow , Sophia R. -J. Jang , Hua-Ming Wang

We analyse a dynamic control problem for scalar reaction-diffusion equations, focusing on the emulation of pattern formation through the selection of appropriate active controls. While boundary controls alone prove inadequate for…

最优化与控制 · 数学 2024-07-26 Domènec Ruiz-Balet , Enrique Zuazua

Patterns are ubiquitous in nature, but how they form is often unclear. Turing developed a seminal theory to explain patterns based on reactions that counteract the equalizing tendency of diffusion. These reactions require continuous energy…

生物物理 · 物理学 2025-11-24 Cathelijne ter Burg , David Zwicker

Localised patterns are often observed in models for dryland vegetation, both as peaks of vegetation in a desert state and as gaps within a vegetated state, known as `fairy circles'. Recent results from radial spatial dynamics show that…

动力系统 · 数学 2024-10-14 Dan J. Hill

Predator-prey relationships are one of the most studied interactions in population ecology. However, little attention has been paid to the possibility of role exchange between species once determined as predators and preys, despite firm…

种群与进化 · 定量生物学 2014-10-31 Faustino Sánchez-Garduño , Pedro Miramontes , Tatiana T. Marquez-Lago

In this paper we investigate a free boundary problem for the diffusive Leslie-Gower prey-predator model with double free boundaries in one space dimension. This system models the expanding of an invasive or new predator species in which the…

偏微分方程分析 · 数学 2017-10-27 Mingxin Wang , Qianying Zhang

The main purpose of the current paper is to contribute towards the comprehension of the dynamics of the shadow system of a singular Gierer-Meinhardt model on an isotropically evolving domain. In the case where the inhibitor's response to…

偏微分方程分析 · 数学 2019-03-26 Nikos. I. Kavallaris , Raquel Barreira , Anotida Madzvamuse

A predator prey system is investigated in this research, which is based on a modified version of the Leslie Gower scheme and a Holling-type II scheme with time dependent delays. Using Schauder's fixed point theorem, we studied the existence…

动力系统 · 数学 2021-11-02 Haifa Ben Fredj , Farouk chérif

In this paper, we investigate a class of non-monotone reaction-diffusion equations with distributed delay and a homogenous boundary Neumann condition, which have a positive steady state. The main concern is the global attractivity of the…

动力系统 · 数学 2018-10-03 Tarik Mohammed Touaoula

A non-Markovian stochastic predator-prey model is introduced in which the prey are immobile plants and predators are diffusing herbivors. The model is studied by both mean-field approximation (MFA)and computer simulations. The MFA results a…

无序系统与神经网络 · 物理学 2009-10-31 Rouzbeh Gerami , Mohammad R. Ejtehadi

A delayed, discrete-time, prey-predator model with Allee effects imposed on prey and predator populations is defined, and dynamics of the system is characterized computationally. The parametric conditions for local asymptotic stability of…

种群与进化 · 定量生物学 2021-07-27 Sujay Goldar , Sk. Sarif Hassan

In this work we investigate the process of pattern formation in a two dimensional domain for a reaction-diffusion system with nonlinear diffusion terms and the competitive Lotka-Volterra kinetics. The linear stability analysis shows that…

斑图形成与孤子 · 物理学 2014-03-03 G. Gambino , M. C. Lombardo , M. Sammartino

We present a stochastic approach to modeling the dynamics of coexistence of prey and predator populations. It is assumed that the space of coexistence is explicitly subdivided in a grid of cells. Each cell can be occupied by only one…

种群与进化 · 定量生物学 2015-06-26 Kelly C. de Carvalho , Tania Tome

We perform the linear stability analysis for a new model for poromechanical processes with inertia (formulated in mixed form using the solid deformation, fluid pressure, and total pressure) interacting with diffusing and reacting solutes…

Coupling diffusion process of signaling molecules with nonlinear interactions of intracellular processes and cellular growth/transformation leads to a system of reaction-diffusion equations coupled with ordinary differential equations…

偏微分方程分析 · 数学 2013-11-08 Anna Marciniak-Czochra , Madoka Nakayama , Izumi Takagi

We examine a spatially discrete reaction diffusion model based on the interactions that create a periodic pattern in the Drosophila eye imaginal disc. This model is capable of generating a regular hexagonal pattern of gene expression behind…

分子网络 · 定量生物学 2010-01-26 Matthew W. Pennington , David K. Lubensky

Spatial many-species predator-prey systems have been shown to yield very rich space-time patterns. This observation begs the question whether there exist universal mechanisms for generating this type of emerging complex patterns in…

统计力学 · 物理学 2019-06-18 Barton L. Brown , Hildegard Meyer-Ortmanns , Michel Pleimling

We study pattern formation in a chemotaxis model of bacteria and soil carbon dynamics as an example system where transient dynamics can give rise to pattern formation outside of Turing unstable regimes. We use a detailed analysis of the…

This paper is concerned with analysis of coupled fractional reaction-diffusion equations. It provides analytical comparison for the fractional and regular reaction-diffusion systems. As an example, the reaction-diffusion model with cubic…

适应与自组织系统 · 物理学 2007-05-23 Vasyl Gafiychuk , Bohdan Datsko , Vitaliy Meleshko