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Ratio-dependent predator-prey models have been increasingly favored by field ecologists where predator-prey interactions have to be taken into account the process of predation search. In this paper we study the conditions of the existence…

动力系统 · 数学 2016-03-07 Shaban Aly , Imbunm Kim , Dongwoo Sheen

We derive a necessary and sufficient condition for Turing instabilities to occur in two-component systems of reaction-diffusion equations with Neumann boundary conditions. We apply this condition to reaction-diffusion systems built from…

数学物理 · 物理学 2007-05-23 Rui Dilao

This work analyzes a predator-prey cross-diffusion system coupled with two chemical substances under homogeneous Neumann boundary conditions in a bounded domain Omega subset of R^n (n >= 2) with smooth boundary dOmega. Under appropriate…

In this paper the Turing pattern formation mechanism of a two component reaction-diffusion system modeling the Schnakenberg chemical reaction coupled to linear cross-diffusion terms is studied. The linear cross-diffusion terms favors the…

斑图形成与孤子 · 物理学 2017-05-08 G. Gambino , S. Lupo , M. Sammartino

This paper explores the classification of parameter spaces for reaction-diffusion systems of two chemical species on stationary domains. The dynamics of the system are explored both in the absence and presence of diffusion. The parameter…

斑图形成与孤子 · 物理学 2017-01-19 Wakil Sarfaraz , Anotida Madzvamuse

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 investigate Turing instability and pattern formation in two-dimensional domains for two reaction-diffusion models, obtained as diffusive limits of kinetic equations for mixtures of monatomic and polyatomic gases. The first model is of…

数学物理 · 物理学 2026-02-23 Stefano Boccelli , Giorgio Martalò , Romina Travaglini

The study of pattern emergence together with exploration of the exemplar Turing model is enjoying a renaissance both from theoretical and experimental perspective. Here, we implement a stability analysis of spatially dependent reaction…

斑图形成与孤子 · 物理学 2019-11-06 Michal Kozák , Eamonn A Gaffney , Václav Klika

A reaction-diffusion-advection predator-prey model with Holling type-II predator functional response is considered. We show the stability/instability of the positive steady state and the existence of a Hopf bifurcation when the diffusion…

动力系统 · 数学 2022-12-09 Yihuan Sun , Shanshan Chen

Diffusion-driven instability and bifurcation analysis are studied in a predator-prey model with herd behavior and quadratic mortality by incorporating multiple Allee effect into prey species. The existence and stability of the equilibria of…

动力系统 · 数学 2023-08-17 Jianglong Xiao , Yonghui Xia

A reaction-diffusion Leslie-Gower predator-prey model, incorporating the fear effect and prey refuge, with Beddington-DeAngelis functional response, is introduced. A qualitative analysis of the solutions of the model and the stability…

种群与进化 · 定量生物学 2023-02-08 Florinda Capone , Roberta De Luca , Isabella Torcicollo

Patterns in reaction-diffusion systems often contain two spatial scales; a long scale determined by a typical wavelength or domain size, and a short scale pertaining to front structures separating different domains. Such patterns naturally…

patt-sol · 物理学 2009-10-22 Aric Hagberg , Ehud Meron

We consider a two dimensional Turing like system with two diffusing species which interact with each other. Considering the species to be charged, we include the effect of an electric field along a given direction which can lead to a drift…

其他凝聚态物理 · 物理学 2008-12-31 B K Agarwalla , J K Bhattacharjee , P Titum

In this paper, we investigate the emergence of a predator-prey system with Ivlev-type functional response and reaction-diffusion. We study how diffusion affects the stability of predator-prey coexistence equilibrium and derive the…

种群与进化 · 定量生物学 2008-01-08 Weiming Wang , Lei Zhang , Hailing Wang , Zhenqing Li

Reaction diffusion systems are often used to study pattern formation in biological systems. However, most methods for understanding their behavior are challenging and can rarely be applied to complex systems common in biological…

偏微分方程分析 · 数学 2013-05-24 William R. Holmes

Reaction-diffusion processes across layered media arise in several scientific domains such as pattern-forming E. coli on agar substrates, epidermal-mesenchymal coupling in development, and symmetry-breaking in cell polarisation. We develop…

This paper investigates the conditions for the stability and emergence of patterns in a new three-component reaction-diffusion system. The system describes the coexistence and interaction of water reservoirs, vegetation, and bushfire…

偏微分方程分析 · 数学 2026-04-14 Serena Dipierro , Enrico Valdinoci

The aim of this paper is to contribute to the understanding of the pattern formation phenomenon in reaction-diffusion equations coupled with ordinary differential equations. Such systems of equations arise, for example, from modeling of…

偏微分方程分析 · 数学 2016-07-15 Anna Marciniak-Czochra , Grzegorz Karch , Kanako Suzuki

The study of pattern-forming instabilities in reaction-diffusion systems on growing or otherwise time-dependent domains arises in a variety of settings, including applications in developmental biology, spatial ecology, and experimental…

斑图形成与孤子 · 物理学 2022-07-11 Robert A. Van Gorder , Václav Klika , Andrew L. Krause

Turing instabilities for a two species reaction-diffusion systems is studied under anisotropic diffusion. More specifically, the diffusion constants which characterize the ability of the species to relocate in space are direction sensitive.…

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