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We proved the existence and uniqueness of a traveling wave solution to the thin film equation with a Navier slip condition at the liquid-solid interface. We obtain explicit lower and upper bounds for the solution and an absolute error…

偏微分方程分析 · 数学 2008-05-08 Roman M. Taranets

We study an incompressible Darcy's free boundary problem, recently introduced in [22]. Our goal is to prove the existence of non-trivial traveling wave solutions and thus validate the interest of this model to describe cell motility. The…

偏微分方程分析 · 数学 2022-05-10 Thomas Alazard , Martina Magliocca , Nicolas Meunier

We study the existence of traveling waves for the parabolic system \begin{equation} \partial_t w - \partial_{x}^2 w = -\nabla_{\mathbb{u}} W(w) \mbox{ in } [0,+\infty) \times \mathbb{R} \end{equation} where $W$ is a potential bounded below…

偏微分方程分析 · 数学 2022-06-01 Ramon Oliver-Bonafoux

This paper is devoted to the study of existence, uniqueness, stability, and monotonicity of traveling wave solutions to the following parabolic-elliptic chemotaxis system with logistic type source…

偏微分方程分析 · 数学 2026-05-07 Wenxian Shen

The theory of traveling waves and spreading speeds is developed for time-space periodic monotone semiflows with monostable structure. By using traveling waves of the associated Poincar\'e maps in a strong sense, we establish the existence…

偏微分方程分析 · 数学 2015-04-16 Jian Fang , Xiao Yu , Xiao-Qiang Zhao

Oncolytic virotherapy (OVT) is a promising cancer treatment strategy in which engineered viruses selectively infect and destroy tumor cells. Motivated by the biological mechanisms underlying viral spread and tumor invasion into the tissue,…

偏微分方程分析 · 数学 2026-02-24 Negar Mohammadnejad , Thomas Hillen

The Fisher-KPP model, and generalisations thereof, is a simple reaction-diffusion models of biological invasion that assumes individuals in the population undergo linear diffusion with diffusivity $D$, and logistic proliferation with rate…

斑图形成与孤子 · 物理学 2022-01-25 Maud El-Hachem , Scott W McCue , Matthew J Simpson

We study the existence of particular traveling wave solutions of a nonlinear parabolic degenerate diffusion equation with a shear flow. Under some assumptions we prove that such solutions exist at least for propagation speeds c {\in}]c*,…

偏微分方程分析 · 数学 2014-12-19 Léonard Monsaingeon , Alexeï Novikov , Jean-Michel Roquejoffre

We study traveling wave solutions of the following chemotaxis systems,$$\begin{cases}u_t=\Delta u-\chi_1\nabla(u\nabla v_1)+\chi_2\nabla(u\nabla v_2)+u(a-bu),\ x\in\mathbb{R}^N\\ 0=\Delta v_1-\lambda_1v_1+\mu_1u,\ x\in\mathbb{R}^N,\\…

偏微分方程分析 · 数学 2017-01-16 Rachidi B. Salako , Wenxian Shen

Using a new method of monotone iteration of a pair of smooth lower- and upper-solutions, the traveling wave solutions of the classical Lotka-Volterra system are shown to exist for a family of wave speeds. Such constructed upper and lower…

偏微分方程分析 · 数学 2009-09-10 Anthony W Leung , Xiaojie Hou , Wei Feng

We prove the existence of a family of travelling wave solutions in a variant of the $\textit{Zeldovich-Frank-Kamenetskii (ZFK) equation}$, a reaction-diffusion equation which models the propagation of planar laminar premixed flames in…

动力系统 · 数学 2024-11-21 Samuel Jelbart , Kristian Uldall Kristiansen , Peter Szmolyan

We consider quasi-stationary (travelling wave type) solutions to a general nonlinear reaction-convection-diffusion equation with arbitrary, autonomous coefficients. The second order nonlinear equation describing one dimensional travelling…

数学物理 · 物理学 2015-11-30 T. Harko , M. K. Mak

This paper concerns the existence and properties of traveling wave solutions to reaction-diffusion-convection equations on the real line. We consider a general diffusion term involving the $p$-Laplacian and combustion-type reaction term. We…

偏微分方程分析 · 数学 2024-06-26 Pavel Drábek , Michaela Zahradníková

We consider a family of controlled reaction-diffusion equations, describing the spatial spreading of an invasive biological species. For a given propagation speed $c\in{I\!\!R}$, we seek a control with minimum cost, which achieves a…

最优化与控制 · 数学 2023-02-21 Alberto Bressan , Minyan Zhang

We prove the existence of a traveling wave solution for a boundary reaction diffusion equation when the reaction term is the combustion nonlinearity with ignition temperature. A key role in the proof is plaid by an explicit formula for…

偏微分方程分析 · 数学 2011-01-25 L. Caffarelli , A. Mellet , Y. Sire

This paper is concerned with traveling waves to an diffusive SIR model with delay placed in the diffusion terms as well as nonlinear incidence rate with delay. Using a cross iteration scheme and partial monotone conditions it will be shown…

动力系统 · 数学 2023-10-24 William Kyle Barker

We consider a branching-selection system in $\mathbb {R}$ with $N$ particles which give birth independently at rate 1 and where after each birth the leftmost particle is erased, keeping the number of particles constant. We show that, as…

概率论 · 数学 2023-04-19 Rick Durrett , Daniel Remenik

Analysis of the speed of propagation in parabolic operators is frequently carried out considering the minimal speed at which its traveling waves move. This value depends on the solution concept being considered. We analyze an extensive…

偏微分方程分析 · 数学 2022-07-14 Margarita Arias , Juan Campos

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

This paper is concerned with the traveling wave solutions for integro-difference systems of higher order. By using Schauder fixed point theorem, the existence of traveling wave solutions is reduced to the existence of generalized upper and…

动力系统 · 数学 2014-02-19 Guo Lin