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相关论文: Fractional $BV$ solutions for $2\times 2$ systems …

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We show existence of a global weak dissipative solution of the Cauchy problem for the two-component Camassa-Holm (2CH) system on the line with nonvanishing and distinct spatial asymptotics. The influence from the second component in the 2CH…

偏微分方程分析 · 数学 2022-01-17 Katrin Grunert , Helge Holden , Xavier Raynaud

We consider the initial value problem for the inviscid Primitive and Boussinesq equations in three spatial dimensions. We recast both systems as an abstract Euler-type system and apply the methods of convex integration of De Lellis and…

偏微分方程分析 · 数学 2017-04-05 Elisabetta Chiodaroli , Martin Michálek

When dilute charged particles are confined in a bounded domain, boundary effects are crucial in the global dynamics. We construct a unique global-in-time solution to the Vlasov-Poisson-Boltzmann system in convex domains with the diffuse…

偏微分方程分析 · 数学 2019-04-08 Yunbai Cao , Chanwoo Kim , Donghyun Lee

In this paper we prove the existence of a weak solution to a doubly nonlinear parabolic fractional $p$-Laplacian equation, which has general doubly non-linearlity including not only the Sobolev subcritical/critical/supercritical cases but…

偏微分方程分析 · 数学 2023-05-02 Nobuyuki Kato , Masashi Misawa , Kenta Nakamura , Yoshihiko Yamaura

We study the existence of global weak solutions of a nonlinear transport-diffusion equation with a fractional derivative in the time variable and under some extra hypotheses, we also study some regularity properties for this type of…

偏微分方程分析 · 数学 2022-03-25 Diego Chamorro , Miguel Yangari

Under the hypothesis of small deformations, the equations of 1D elastodynamics write as a 2 x 2 hyperbolic system of conservation laws. Here, we study the Riemann problem for convex and nonconvex constitutive laws. In the convex case, the…

经典物理 · 物理学 2022-02-08 H Berjamin , B Lombard , G Chiavassa , N Favrie

We study the barotropic compressible Navier-Stokes system where the shear viscosity is a positive constant and the bulk one proportional to a power of the density with the power bigger than one and a third. The system is subject to the…

偏微分方程分析 · 数学 2022-06-01 Xinyu Fan , Jiaxu Li , Jing Li

In this article, we consider scalar conservation laws with fluxes having spatial discontinuities and possible flat regions and study the following three aspects: (i) existence, (ii) uniqueness and (iii) BV regularity of solutions. We…

偏微分方程分析 · 数学 2020-10-27 Shyam Sundar Ghoshal , John D. Towers , Ganesh Vaidya

In this paper, we consider the spatially inhomogeneous diffusively driven inelastic Boltzmann equation in different cases: the restitution coefficient can be constant or can depend on the impact velocity (which is a more physically relevant…

偏微分方程分析 · 数学 2015-12-04 Isabelle Tristani

We revisit a well-established model for highly re-entrant semi-conductor manufacturing systems, and analyze it in the setting of states, in- and outfluxes being Borel measures. This is motivated by the lack of optimal solutions in the…

偏微分方程分析 · 数学 2019-12-30 Xiaoqian Gong , Matthias Kawski

By means of variational methods we investigate existence, non-existence as well as regularity of weak solutions for a system of nonlocal equations involving the fractional laplacian operator and with nonlinearity reaching the critical…

偏微分方程分析 · 数学 2015-08-24 Luiz Faria , Olimpio Miyagaki , Fabio Pereira , Marco Squassina , Chengxiang Zhang

This study investigates the existence, uniqueness, and multiplicity of positive solutions for a system of fractional differential equations given by: \begin{equation*} (-\Delta)^{s_i} u_{i}+\lambda_{i} u_{i}=\sum_{j=1}^{n} \alpha_{i…

偏微分方程分析 · 数学 2025-10-16 Ashutosh Dixit , Hichem Hajaiej , Tuhina Mukherjee

This paper is concerned with the stochastic Hamilton-Jacobi-Bellman equation with controlled leading coefficients, which is a type of fully nonlinear backward stochastic partial differential equation (BSPDE for short). In order to formulate…

最优化与控制 · 数学 2015-03-23 Jinniao Qiu

We consider a fractional nonlinear wave equations (fNLW) with a general power-type nonlinearity, on the two-dimensional torus. Our main goal is to construct invariant global-in-time Gibbs dynamics for a renormalized fNLW. We first construct…

偏微分方程分析 · 数学 2025-10-24 Luigi Forcella , Oana Pocovnicu

In this paper the global existence of weak solutions to the relativistic BGK model for the relativistic Boltzmann equation is analyzed. The proof relies on the strong compactness of the density, velocity and temperature under minimal…

偏微分方程分析 · 数学 2019-02-21 Juan Calvo , Pierre-Emmanuel Jabin , Juan Soler

We investigate the density large deviation function for a multidimensional conservation law in the vanishing viscosity limit, when the probability concentrates on weak solutions of a hyperbolic conservation law conservation law. When the…

统计力学 · 物理学 2018-03-14 Julien Barré , Cedric Bernardin , Raphaël Chetrite

We obtain a global existence result for the three-dimensional Navier-Stokes equations with a large class of data allowing growth at spatial infinity. Namely, we show the global existence of suitable weak solutions when the initial data…

偏微分方程分析 · 数学 2020-01-08 Zachary Bradshaw , Igor Kukavica , Tai-Peng Tsai

This article examines the existence and uniqueness of weak solutions to the d-dimensional micropolar equations ($d=2$ or $d=3$) with general fractional dissipation $(-\Delta)^{\alpha}u$ and $(-\Delta)^{\beta}w$. The micropolar equations…

偏微分方程分析 · 数学 2019-12-02 Oussama Ben Said , Jiahong Wu

Employing a phase space which includes the (Riemann-Liouville) fractional derivative of curves evolving on real space, we develop a restricted variational principle for Lagrangian systems yielding the so-called restricted fractional…

数学物理 · 物理学 2018-03-01 Fernando Jiménez , Sina Ober-Blöbaum

The classical system of shallow-water (Saint--Venant) equations describes long surface waves in an inviscid incompressible fluid of a variable depth. Although shock waves are expected in this quasilinear hyperbolic system for a wide class…

偏微分方程分析 · 数学 2016-03-16 Sergey N. Alexeenko , Marina V. Dontsova , Dmitry E. Pelinovsky