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In this paper, we study the large time behavior of solutions to the Cauchy problem for the anisotropic conservation laws in two dimensional space. Without any smallness assumption on the initial data, the decay rates of solutions in $L^2$…

偏微分方程分析 · 数学 2018-08-31 Kaiqiang Li , Weike Wang

This paper investigates the Cauchy problem for the barotropic compressible Navier-Stokes equations in $\mathbb{R}^2$ with the constant state as far field, which may be vacuum or non-vacuum. Under the assumption of a sufficiently large bulk…

偏微分方程分析 · 数学 2026-01-27 Qinghao Lei , Chengfeng Xiong

We study the large-time behavior of nonnegative solutions to a nonlocal dispersal equation in $\mathbb R^N$ with an absorption term modeled by $-u^p$, with $1<p<1+\frac2N$. The initial datum $u_0$ is assumed to be bounded, and to satisfy…

偏微分方程分析 · 数学 2025-12-04 Carmen Cortázar , Fernando Quirós , Noemi Wolanski

The non-modal linear stability of miscible viscous fingering in a two dimensional homogeneous porous medium has been investigated. The linearized perturbed equations for Darcy's law coupled with a convection-diffusion equation is…

流体动力学 · 物理学 2015-11-20 Tapan Kumar Hota , Satyajit Pramanik , Manoranjan Mishra

In this paper, the large time behavior of the solutions for the Cauchy problem to the one-dimensional compressible Navier-Stokes system with the motion of a viscous heat-conducting perfect polytropic gas is investigated.Our result shows…

偏微分方程分析 · 数学 2024-03-26 Yi Peng , Xiaoding Shi , Yuhang Wu

In this paper we study a broad class of non-local advection-diffusion models describing the behaviour of an arbitrary number of interacting species, each moving in response to the non-local presence of others. Our model allows for different…

偏微分方程分析 · 数学 2024-06-17 Valeria Giunta , Thomas Hillen , Mark Lewis , Jonathan Potts

We study an anisotropic, possibly non-homogeneous version of the evolution $p$-Laplacian equation when fast diffusion holds in all directions. We develop the basic theory and prove symmetrization results from which we derive $L^1$ to…

偏微分方程分析 · 数学 2021-05-11 Filomena Feo , Juan Luis Vazquez , Bruno Volzone

We prove the existence of a global solution to the Cauchy problem for a nonlinear reaction-diffusion system coupled with a system of ordinary differential equations. The system models the propagation of a combustion front in a porous medium…

偏微分方程分析 · 数学 2016-04-19 J. C. da Mota , M. M. Santos , R. A. Santos

We establish the large deviation principle for the slow variables in slow-fast dynamical system driven by both Brownian noises and L\'evy noises. The fast variables evolve at much faster time scale than the slow variables, but they are…

动力系统 · 数学 2022-11-22 Shenglan Yuan , René Schilling , Jinqiao Duan

We study nonlinear elliptic equations for operators corresponding to non-stable L\'evy diffusions. We include a sum of fractional Laplacians of different orders. Such operators are infinitesimal generators of non-stable (i.e., non…

偏微分方程分析 · 数学 2015-12-16 Xavier Cabre , Joaquim Serra

We extend to multi-dimensions the work of [1], where new fully explicit kinetic methods were built for the approximation of linear and non-linear convection-diffusion problems. The fundamental principles from the earlier work are retained:…

数值分析 · 数学 2023-12-29 Gauthier Wissocq , Rémi Abgrall

We consider the Cauchy problem for a stochastic scalar parabolic-hyperbolic equation in any space dimension with nonlocal, nonlinear, and possibly degenerate diffusion terms. The equations are nonlocal because they involve fractional…

偏微分方程分析 · 数学 2020-08-10 Neeraj Bhauryal , Ujjwal Koley , Guy Vallet

Dynamical systems driven by a general L\'evy stable noise are considered. The inertia is included and the noise, represented by a generalised Ornstein-Uhlenbeck process, has a finite relaxation time. A general linear problem (the additive…

统计力学 · 物理学 2012-02-15 Tomasz Srokowski

We consider the Cauchy problem for one-dimensional dispersive equations with a general nonlinearity in the periodic setting. Our main hypotheses are both that the dispersive operator behaves for high frequencies as a Fourier multiplier by $…

偏微分方程分析 · 数学 2022-03-31 Luc Molinet , Tomoyuki Tanaka

For a fixed bounded domain $D \subset \mathbb{R}^N$ we investigate the asymptotic behaviour for large times of solutions to the $p$-Laplacian diffusion equation posed in a tubular domain \begin{equation*} \partial_t u = \Delta_p u \quad…

偏微分方程分析 · 数学 2019-02-14 Alessandro Audrito , Juan Luis Vázquez

In this paper, we study the decay rate in time to solutions of the Cauchy problem for the one-dimensional viscous conservation law where the far field states are prescribed. Especially, we deal with the case that the flux function which is…

偏微分方程分析 · 数学 2015-02-17 Natsumi Yoshida

We consider a three-dimensional domain occupied by a homogeneous, incompressible, non-Newtonian, heat-conducting fluid with prescribed nonuniform temperature on the boundary and no-slip boundary conditions for the velocity. No external body…

偏微分方程分析 · 数学 2026-01-26 Anna Abbatiello , Miroslav Bulíček , Petr Kaplický

This paper considers the existence of local and global-in-time strong solutions to the advection-diffusion equation with variable coefficients on an evolving surface with a boundary. We apply both the maximal $L^p$-in-time regularity for…

偏微分方程分析 · 数学 2022-12-14 Hajime Koba

Although there are many results on the global solvability and the precise description of the large time behaviors of solutions to the initial-boundary value problems of the one-dimensional viscous radiative and reactive gas in bounded…

偏微分方程分析 · 数学 2017-05-04 Yongkai Liao , Huijiang Zhao

In this work, we provide conditions for nonlinear monotone semigroups on locally convex vector lattices to give rise to a generalized notion of viscosity solutions to a related nonlinear partial differential equation. The semigroup needs to…

偏微分方程分析 · 数学 2025-02-26 Fabian Fuchs , Max Nendel