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The aim of this paper is to give a stochastic representation for the solution to a natural extension of the Caputo-type evolution equation. The nonlocal-in-time operator is defined by a hypersingular integral with a (possibly…

偏微分方程分析 · 数学 2018-10-23 Qiang Du , Lorenzo Toniazzi , Zhi Zhou

The L\'evy-Lorentz gas describes the motion of a particle on the real line in the presence of a random array of scattering points, whose distances between neighboring points are heavy-tailed i.i.d. random variables with finite mean. The…

概率论 · 数学 2023-04-24 Marco Zamparo

We are interested in the large-time behavior of solutions to finite volume discretizations of convection-diffusion equations or systems endowed with non-homogeneous Dirichlet and Neumann type boundary conditions. Our results concern various…

偏微分方程分析 · 数学 2018-10-03 Claire Chainais-Hillairet , Maxime Herda

This paper presents a multi-scale method for convection-dominated diffusion problems in the regime of large P\'eclet numbers. The application of the solution operator to piecewise constant right-hand sides on some arbitrary coarse mesh…

数值分析 · 数学 2022-06-07 Francesca Bonizzoni , Philip Freese , Daniel Peterseim

Global existence of very weak solutions to a non-local diffusion-advection-reaction equation is established under no-flux boundary conditions in higher dimensions. The equation features degenerate myopic diffusion and nonlocal adhesion and…

偏微分方程分析 · 数学 2024-10-18 Maria Eckardt , Anna Zhigun

The convergence to non-diffusive self-similar solutions is investigated for non-negative solutions to the Cauchy problem $\partial_t u = \Delta_p u + |\nabla u|^q$ when the initial data converge to zero at infinity. Sufficient conditions on…

偏微分方程分析 · 数学 2008-07-30 Philippe Laurençot

This work addresses the regularity of solutions for a nonlocal diffusion equation over the space of periodic distributions. The spatial operator for the nonlocal diffusion equation is given by a nonlocal Laplace operator with a compactly…

偏微分方程分析 · 数学 2022-10-04 Ilyas Mustapha , Bacim Alali , Nathan Albin

The paper examines stochastic diffusion within an expanding space-time framework. It starts with providing a rationale for the considered model and its motivation from cosmology where the expansion of space-time is used in modelling various…

概率论 · 数学 2023-12-22 Philip Broadbridge , Illia Donhauzer , Andriy Olenko

In this paper, we study the Cauchy problem to the 3D fractional compressible isentropic generalized Navier-Stokes equations for viscous compressible fluid with one Levy diffusion process. We obtain the existence and uniqueness of global…

偏微分方程分析 · 数学 2024-07-03 Mengqian Liu , Lei Niu , Zhigang Wu

In this contribution we analyze the large time behavior of a family of nonlinear finite volume schemes for anisotropic convection-diffusion equations set in a bounded bidimensional domain and endowed with either Dirichlet and / or no-flux…

数值分析 · 数学 2020-06-11 Clément Cancès , Claire Chainais-Hillairet , Maxime Herda , Stella Krell

This paper is concerned with the large-time behavior of solutions to the Cauchy problem of the one-dimensional compressible fluid models of Korteweg type with density- and temperature-dependent viscosity, capillarity, and heat conductivity…

偏微分方程分析 · 数学 2018-01-12 Zhengzheng Chen , Mengdi Sheng

Ultrasonic propagation through media with thermal and molecular relaxation can be modeled by third-order in time nonlinear wave-like equations with memory. This paper investigates the asymptotic behavior of a Cauchy problem for such a…

偏微分方程分析 · 数学 2020-12-03 Vanja Nikolić , Belkacem Said-Houari

We study the long-time dynamics of the nonlinear processes modeled by diffusion-transport partial differential equations in non-divergence form with drifts. The solutions are subject to some inhomogeneous Dirichlet boundary condition.…

偏微分方程分析 · 数学 2026-02-11 Luan Hoang , Akif Ibragimov

In this paper, we investigate the long-time behavior of the $L^2$-norm of solutions to the Cauchy problem for the strongly damped wave equation on $\mathbb{R}^n$, with particular focus on the low-dimensional cases $n=1$ and $n=2$. Although…

偏微分方程分析 · 数学 2026-05-25 Ryo Ikehata , Hiroshi Takeda

We study nonnegative solutions to the Cauchy problem for the Fractional Fast Diffusion Equation on a suitable class of connected, noncompact Riemannian manifolds. This parabolic equation is both singular and nonlocal: the diffusion is…

偏微分方程分析 · 数学 2025-03-27 Elvise Berchio , Matteo Bonforte , Gabriele Grillo

We prove stability results for nonlinear diffusion equations of the porous medium and fast diffusion types with respect to the nonlinearity power $m$: solutions with fixed data converge in a suitable sense to the solution of the limit…

偏微分方程分析 · 数学 2013-09-04 Teemu Lukkari

In this paper, we discuss the asymptotic behaviour of the weak solution to the Cauchy problem for the scalar viscous conservation law, with nonlinear Laplacian viscosity. Firstly, we obtain the existence, uniqueness and regularity of…

偏微分方程分析 · 数学 2023-12-07 Yechi Liu

We consider a Cauchy problem for a fractional anisotropic parabolic equation in anisotropic H\"{o}lder spaces. The equation generalizes the heat equation to the case of fractional power of the Laplace operator and the power of this operator…

偏微分方程分析 · 数学 2022-10-12 Sergey Degtyarev

This paper is concerned with the large time behavior of the solutions to the Cauchy problem for the one-dimensional compressible Navier-Stokes/Allen-Cahn system with the immiscible two-phase flow initially located near the phase separation…

偏微分方程分析 · 数学 2024-07-08 Yazhou Chen , Qiaolin He , Xiaoding Shi

We give a sufficient condition for non-existence of global nonnegative mild solutions of the Cauchy problem for the semilinear heat equation $u' = Lu + f(u)$ in $L^p(X,m)$ for $p \in [1,\infty)$, where $(X,m)$ is a $\sigma$-finite measure…

偏微分方程分析 · 数学 2022-05-04 Daniel Lenz , Marcel Schmidt , Ian Zimmermann