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相关论文: Non-cooperative Fisher--KPP systems: traveling wav…

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This paper is concerned with non-cooperative parabolic reaction--diffusion systems which share structural similarities with the scalar Fisher--KPP equation. In a previous paper, we established that these systems admit traveling wave…

偏微分方程分析 · 数学 2017-11-29 Léo Girardin

Non-cooperative Fisher-KPP systems with space-time periodic coefficients are motivated for instance by models for structured populations evolving in periodic environments. This paper is concerned with entire solutions describing the…

偏微分方程分析 · 数学 2026-02-09 Léo Girardin , Grégoire Nadin

The famous Fisher-KPP reaction-diffusion model combines linear diffusion with the typical KPP reaction term, and appears in a number of relevant applications in biology and chemistry. It is remarkable as a mathematical model since it…

偏微分方程分析 · 数学 2016-02-19 Alessandro Audrito , Juan Luis Vázquez

This paper is concerned with asymptotic persistence, extinction and spreading properties for non-cooperative Fisher-KPP systems with space-time periodic coefficients. Results are formulated in terms of a family of generalized principal…

偏微分方程分析 · 数学 2025-01-14 Léo Girardin

We consider a class of cooperative reaction-diffusion systems with free boundaries in one space dimension, where the diffusion terms are nonlocal, given by integral operators involving suitable kernel functions, and they are allowed not to…

偏微分方程分析 · 数学 2020-10-06 Yihong Du , Wenjie Ni

We consider a Fisher-KPP-type equation, where both diffusion and nonlinear part are nonlocal, with anisotropic probability kernels. Under minimal conditions on the coefficients, we prove existence, uniqueness, and uniform space-time…

偏微分方程分析 · 数学 2015-09-22 Dmitri Finkelshtein , Yuri Kondratiev , Pasha Tkachov

We study the Cauchy problem in the hyperbolic space for the heat equation with a Fisher-KPP type forcing term. Depending on the relative strength of diffusion, measured by the infimum of the spectrum of the Laplace-Beltrami operator, as…

偏微分方程分析 · 数学 2026-05-07 María del Mar González , Irene Gonzálvez , Fernando Quirós

We consider a one-dimensional reaction-diffusion equation of Fisher-Kolmogoroff-Petrovsky-Piscounoff type. We investigate the effect of the interaction between the nonlinear diffusion coefficient and the reaction term on the existence and…

偏微分方程分析 · 数学 2018-03-29 Pavel Drabek , Peter Takac

The famous Fisher-KPP reaction diffusion model combines linear diffusion with the typical Fisher-KPP reaction term, and appears in a number of relevant applications. It is remarkable as a mathematical model since, in the case of linear…

偏微分方程分析 · 数学 2016-07-06 Alessandro Audrito , Juan Luis Vazquez

We study the traveling wave solutions to a reaction diffusion system modeling the public goods game with altruistic behaviors. The existence of the waves is derived through monotone iteration of a pair of classical upper- and lower…

偏微分方程分析 · 数学 2009-09-09 Xiaojie Hou , Wei Feng

In this paper, we study the existence and stability of random transition waves for time heterogeneous Fisher-KPP Equations with nonlocal diffusion. More specifically, we consider general time heterogeneities both for the nonlocal diffusion…

偏微分方程分析 · 数学 2023-06-01 Min Zhao , Rong Yuan

We consider the Fisher-KPP equation with a non-local interaction term. We establish a condition on the interaction that allows for existence of non-constant periodic solutions, and prove uniform upper bounds for the solutions of the Cauchy…

偏微分方程分析 · 数学 2015-06-16 Francois Hamel , Lenya Ryzhik

In this article, we are interested in a non-monotone system of logistic reaction-diffusion equations. This system of equations models an epidemics where two types of pathogens are competing, and a mutation can change one type into the other…

偏微分方程分析 · 数学 2014-12-22 Quentin Griette , Gaël Raoul

We consider a reaction-diffusion equation with nonlocal anisotropic diffusion and a linear combination of local and nonlocal monostable-type reactions in a space of bounded functions on $\mathbb{R}^d$. Using the properties of the…

偏微分方程分析 · 数学 2018-04-30 Dmitri Finkelshtein , Yuri Kondratiev , Pasha Tkachov

We study traveling waves for a reaction-diffusion equation with nonlocal anisotropic diffusion and a linear combination of local and nonlocal monostable-type reactions. We describe relations between speeds and asymptotic of profiles of…

偏微分方程分析 · 数学 2018-04-30 Dmitri Finkelshtein , Yuri Kondratiev , Pasha Tkachov

We address the uniqueness of the nonzero stationary state for a reaction-diffusion system of Fisher-KPP type that does not satisfy the comparison principle. Although the uniqueness is false in general, it turns out to be true under…

偏微分方程分析 · 数学 2020-03-17 Léo Girardin , Quentin Griette

The Fisher-KPP equation with general nonlinear diffusion and arbitrary kinetic orders in the reaction terms is considered. The existence of oscillatory travelling wave solutions is proved for this model. Conditions for the existence of such…

偏微分方程分析 · 数学 2019-10-31 Ariel Sánchez-Valdés , Benito Hernández-Bermejo

In this work, we first prove a stability theorem for traveling waves in a class of non-cooperative reaction-diffusion systems with nonlocal dispersal of equal diffusivities. Our stability criterion is in the sense that the initial…

偏微分方程分析 · 数学 2024-05-08 Jong-Shenq Guo , Masahiko Shimojo

We investigate the asymptotic speed of spread of the solutions of a non-autonomous Fisher-KPP equation with nonlocal diffusion, driven by a thin-tailed kernel. In this paper, we are concerned with both compactly supported and exponentially…

偏微分方程分析 · 数学 2023-08-04 Arnaud Ducrot , Zhucheng Jin

Incorporating free boundary into time-delayed reaction-diffusion equations yields a compatible condition that guarantees the well-posedness of the initial value problem. With the KPP type nonlinearity we then establish a vanishing-spreading…

偏微分方程分析 · 数学 2021-08-03 Ningkui Sun , Jian Fang
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