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The convex-concave splitting discretization of the Allen-Cahn is easy to implement and guaranteed to be energy decreasing even for large time-steps. We analyze the time-stepping scheme for a large class of potentials which includes the…

数值分析 · 数学 2025-06-24 Patrick Dondl , Akwum Onwunta , Ludwig Striet , Stephan Wojtowytsch

We consider a variational model for heterogeneous phase separation, based on a diffuse interface energy with moving wells. Our main result identifies the asymptotic behavior of the first variation of the phase field energies as the width of…

偏微分方程分析 · 数学 2024-12-04 Likhit Ganedi , Alice Marveggio , Kerrek Stinson

We study traveling wave solutions of an equation for surface waves of moderate amplitude arising as a shallow water approximation of the Euler equations for inviscid, incompressible and homogenous fluids. We obtain solitary waves of…

经典分析与常微分方程 · 数学 2013-12-06 Armengol Gasull , Anna Geyer

This paper studies traveling waves with nonzero wave speed (angular traveling waves) of the high-dimensional Boussinesq equation that have not been studied before. We analyze the properties of these waves and demonstrate that, unlike the…

偏微分方程分析 · 数学 2024-04-08 Amin Esfahani

The notion of traveling wave, which typically refers to some particular spatio-temporal con- nections between two stationary states (typically, entire solutions keeping the same profile's shape through time), is essential in the…

偏微分方程分析 · 数学 2013-04-04 Thomas Giletti

We show that wave breaking occurs for the modified Camassa-Holm (mCH) equation. Next we classify all traveling wave solutions of the modified Camassa-Holm equation in the weak sense via parametrization of their maxima, minima and wave…

偏微分方程分析 · 数学 2019-04-03 Alisson Darós , Lynnyngs Kelly Arruda Saraiva de Paiva

We prove the existence of multi-soliton and kink-multi-soliton solutions of the Euler-Korteweg system in dimension one. Such solutions behaves asymptotically in time like several traveling waves far away from each other. A kink is a…

偏微分方程分析 · 数学 2018-09-06 Corentin Audiard

This paper is concerned with a fully nonlinear variant of the Allen-Cahn equation with strong irreversibility, where each solution is constrained to be non-decreasing in time. Main purposes of the paper are to prove the well-posedness,…

偏微分方程分析 · 数学 2018-01-30 Goro Akagi , Messoud Efendiev

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 study a Rock-Paper-Scissors model for competing populations that exhibits travelling waves in one spatial dimension and spiral waves in two spatial dimensions. A characteristic feature of the model is the presence of a robust…

斑图形成与孤子 · 物理学 2021-12-14 Cris R. Hasan , Hinke M. Osinga , Claire M. Postlethwaite , Alastair M. Rucklidge

We describe and analyze the mean transport due to transient progressive waves, including breaking waves. The waves are packets and are generated with a boundary-forced air-water two-phase Navier Stokes solver. The analysis is done in the…

流体动力学 · 物理学 2019-10-02 Juan M. Restrepo , Jorge M. Ramirez

Hall-MHD is a mixed hyperbolic-parabolic partial differential equation that describes the dynamics of an ideal two fluid plasma with massless electrons. We study the only shock wave family that exists in this system (the other…

等离子体物理 · 物理学 2015-06-17 George I. Hagstrom , Eliezer Hameiri

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 prove the existence of periodic travelling wave solutions for general discrete nonlinear Klein-Gordon systems, considering both cases of hard and soft on-site potentials. In the case of hard on-site potentials we implement a fixed point…

偏微分方程分析 · 数学 2023-07-21 Dirk Hennig , Nikos I. Karachalios

We study Klein-Gordon chains with attractive nearest neighbour forces and convex on-site potential, and show that there exists a two-parameter family of periodic travelling waves (wave trains) with unimodal and even profile functions. Our…

数学物理 · 物理学 2010-08-31 Michael Herrmann

The Kawahara equation is a weakly nonlinear long-wave model of dispersive waves that emerges when leading order dispersive effects are in balance with the next order correction. Traveling wave solutions of the Kawahara equation satisfy a…

斑图形成与孤子 · 物理学 2022-03-04 Patrick Sprenger , Thomas J. Bridges , Michael Shearer

In recent years, nonreciprocally coupled systems have received growing attention. Previous work has shown that the interplay of nonreciprocal coupling and Goldstone modes can drive the emergence of temporal order such as traveling waves. We…

斑图形成与孤子 · 物理学 2024-04-23 Fridtjof Brauns , M. Cristina Marchetti

In this paper, we study the mean curvature flow of graphs with Neumann boundary condition. The main aim is to use the maximum principle to get the boundary gradient estimate for solutions. In particular, we obtain the corresponding…

偏微分方程分析 · 数学 2016-06-22 Jinju Xu

We consider single-phase flow with solute transport where ions in the fluid can precipitate and form a mineral, and where the mineral can dissolve and release solute into the fluid. Such a setting includes an evolving interface between…

数值分析 · 数学 2023-07-25 Carina Bringedal , Alexander Jaust

The aim of this paper is to construct and analyze solutions to a class of Hamilton-Jacobi-Bellman equations with range bounds on the optimal response variable. Using the Riccati transformation we derive and analyze a fully nonlinear…

投资组合管理 · 定量金融 2012-05-25 Naoyuki Ishimura , Daniel Sevcovic