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We study the Cauchy problem for a class of linear evolution equations of arbitrary order with coefficients depending both on time and space variables. Under suitable decay assumptions on the coefficients of the lower order terms for $|x|$…

偏微分方程分析 · 数学 2025-04-07 Alexandre Arias Junior , Alessia Ascanelli , Marco Cappiello , Eliakim Cleyton Machado

The present paper deals with the Cauchy problem of a compressible generic two-fluid model with capillarity effects in any dimension $N\geq2$. We first study the unique global solvability of the model in spaces with critical regularity…

偏微分方程分析 · 数学 2020-10-05 Fuyi Xu , Meiling Chi

In this paper, we study the Cauchy problem to the density-dependent liquid crystal system in $\mathbb R^3$. We establish the local existence and uniqueness of strong solutions to this system. In order to overcome the difficulties caused by…

偏微分方程分析 · 数学 2015-12-03 Huajun Gong , Jinkai Li , Chen Xu

We report numerical results which show the achievement of net transport of self-propelled particles (SPP) in the presence of a two-dimensional regular array of convex, either symmetric or asymmetric, rigid obstacles. The repulsive…

软凝聚态物质 · 物理学 2014-09-15 Fabricio Q. Potiguar , G. A. Farias , W. P. Ferreira

The cohesive collective motion (flocking, swarming) of autonomous agents is ubiquitously observed and exploited in both natural and man-made settings, thus, minimal models for its description are essential. In a model with continuous space…

统计力学 · 物理学 2015-01-12 Illes J. Farkas , Jeromos Kun , Yi Jin , Gaoqi He , Mingliang Xu

In this paper, we prove existence and uniqueness of measure solutions for the Cauchy problem associated to the (vectorial) continuity equation with a non-local flow. We also give a stability result with respect to various parameters.

偏微分方程分析 · 数学 2011-12-20 Gianluca Crippa , Magali Lécureux-Mercier

We consider existence and uniqueness issues for the initial value problem of parabolic equations $\partial_{t} u = {\rm div} A \nabla u$ on the upper half space, with initial data in $L^p$ spaces. The coefficient matrix $A$ is assumed to be…

偏微分方程分析 · 数学 2025-04-29 Pascal Auscher , Sylvie Monniaux , Pierre Portal

The Cauchy problem for the Vlasov-Maxwell-Boltzmann equations (VMB) is considered. First the renormalized solution to the Vlasov equation with the Lorentz force is discussed and the difficulty on the partial differentiability of the…

偏微分方程分析 · 数学 2011-01-11 Xianpeng Hu , Dehua Wang

In this paper, we study local well-posedness and orbital stability of standing waves for a singularly perturbed one-dimensional nonlinear Klein-Gordon equation. We first establish local well-posedness of the Cauchy problem by a fixed point…

偏微分方程分析 · 数学 2019-11-12 Elek Csobo , François Genoud , Masahito Ohta , Julien Royer

We investigate the Cauchy problem for a fluid-particle interaction model in $\mathbb{R}^3$. This model consists of the compressible barotropic Navier-Stokes equations and the Vlasov-Fokker-Planck equation coupled together via the…

偏微分方程分析 · 数学 2026-04-22 Fucai Li , Jinkai Ni , Man Wu

We investigate the initial value problem of a very general class of $3+1$ non-Newtonian compressible fluids in which the viscous stress tensor with shear and bulk viscosity relaxes to its Navier-Stokes values. These fluids correspond to the…

偏微分方程分析 · 数学 2023-12-04 Ariel Lerman , Marcelo M. Disconzi , Jorge Noronha

We consider the Cauchy problem for the nonlinear Schr\"odinger equation on $\mathbb{R}^d$, where the initial data is in $\dot{H}^1(\mathbb{R}^d)\cap L^p(\mathbb{R}^d)$. We prove local well-posedness for large ranges of $p$ and discuss some…

偏微分方程分析 · 数学 2017-06-27 Simão Correia

We prove the existence of weak solutions in the space of energy for a class of non-linear Schroedinger equations in the presence of a external rough magnetic potential. Under our assumptions it is not possible to study the problem by means…

偏微分方程分析 · 数学 2018-04-18 Paolo Antonelli , Alessandro Michelangeli , Raffaele Scandone

This paper concerns the well-posedness theory of the motion of physical vacuum for the compressible Euler equations with or without self-gravitation. First, a general uniqueness theorem of classical solutions is proved for the three…

偏微分方程分析 · 数学 2014-08-04 Tao Luo , Zhouping Xin , Huihui Zeng

We prove maximal Schauder regularity for solutions to elliptic systems and Cauchy problems, in the space $C_b(\mathbb{R}^d;\mathbb{R}^m)$ of bounded and continuous functions, associated to a class of nonautonomous weakly coupled…

偏微分方程分析 · 数学 2022-01-03 Davide Addona , Luca Lorenzi

We study the stationary Navier--Stokes equations in the whole plane with a compactly supported force term and with a prescribed constant spatial limit. Prior to this work, existence of solutions to this problem was only known under special…

偏微分方程分析 · 数学 2022-11-18 Julien Guillod , Mikhail Korobkov , Xiao Ren

This paper is aimed to establish well-posedness in several settings for the Cauchy problem associated to a model arising in the study of capillary-gravity flows. More precisely, we determinate local well-posedness conclusions in classical…

偏微分方程分析 · 数学 2020-05-21 Oscar Riaño

Understanding the organization of collective motion in biological systems is an ongoing challenge. In this Paper we consider a minimal model of self-propelled particles with variable speed. Inspired by experimental data from schooling fish,…

生物物理 · 物理学 2015-06-04 Shradha Mishra , Kolbjørn Tunstrøm , Iain D. Couzin , Cristián Huepe

We consider the macroscopic model derived by Degond and Motsch from a time-continuous version of the Vicsek model, describing the interaction orientation in a large number of self-propelled particles. In this article, we study the influence…

数学物理 · 物理学 2013-01-18 Amic Frouvelle

An existence result on weak solutions to the continuous coagulation equation with collision-induced multiple fragmentation is established for certain classes of unbounded coagulation, collision and breakup kernels. In this model, a pair of…

偏微分方程分析 · 数学 2018-02-27 Prasanta Kumar Barik , Ankik Kumar Giri
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