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相关论文: Global Strong Solutions of the Boltzmann Equation …

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In this paper, we investigate existence of global-in-time strong solutions to the kinetic Cucker--Smale model coupled with the Stokes equations in the whole space. By introducing a weighted Sobolev space and using space-time estimates for…

偏微分方程分析 · 数学 2024-06-19 Chunyin Jin

This paper is concerned with the existence, shape and dynamical stability of infinite-energy equilibria for a general class of spatially homogeneous kinetic equations in space dimensions $d \geq 3$. Our results cover in particular…

数学物理 · 物理学 2013-09-30 Federico Bassetti , Lucia Ladelli , Daniel Matthes

Let rarefied gas be confined in an infinite layer with diffusely reflecting boundaries that are isothermal and non-moving. The initial-boundary value problem on the nonlinear Boltzmann equation governing the rarefied gas flow in such…

偏微分方程分析 · 数学 2025-08-26 Hongxu Chen , Renjun Duan , Junhao Zhang

We study linear pseudoparabolic equations with unbounded and time-dependent coefficients. We solve the case which has remained open in several recent studies of pseudoparabolic equations with unbounded and time-dependent coefficients. In…

偏微分方程分析 · 数学 2016-02-08 Sujin Khomrutai

We construct a unique global solution to the Cauchy problem of the 3D Boltzmann equation for initial data around the Maxwellian in the spatially critical homogeneous Besov space…

偏微分方程分析 · 数学 2025-07-15 Jing Liu , Ling-Yun Shou , Jiang Xu

The Boltzmann equation is a fundamental equation in kinetic theory that describes the motion of rarefied gases. In this study, we examine the Boltzmann equation within a $C^1$ bounded domain, subject to a large external potential $\Phi(x)$…

偏微分方程分析 · 数学 2025-06-10 Jong-in Kim , Donghyun Lee

The problem of ballistic annihilation for a spatially homogeneous system is revisited within Boltzmann's kinetic theory in two and three dimensions. Exact analytical results are derived for the time evolution of the particle density for…

统计力学 · 物理学 2009-11-07 Francois Coppex , Michel Droz , Jaroslaw Piasecki , Emmanuel Trizac , Peter Wittwer

This paper studies a Boltzmann-Nordheim equation in a slab with two-dimensional velocity space and pseudo-Maxwellian forces. Strong solutions are obtained for the Cauchy problem with large initial data in an $ L^1 \cap L^{\infty} $ setting.…

数学物理 · 物理学 2016-01-27 L. Arkeryd , A. Nouri

We prove the Hardy-Littlewood-Sobolev type $L^p$ estimates for the gain term of the Boltzmann collision operator including Maxwellian molecule, hard potential and hard sphere models. Combining with the results of Alonso et al. [2] for the…

偏微分方程分析 · 数学 2024-10-25 Ling-Bing He , Jin-Cheng Jiang , Hung-Wen Kuo , Meng-Hao Liang

Diffusive limit of the Vlasov-Poisson-Boltzmann system without angular cutoff in the framework of perturbation around global Maxwellian still remains open. By employing the weighted energy method with a newly introduced weight function…

偏微分方程分析 · 数学 2024-05-16 Yuan Xu , Fujun Zhou , Yongsheng Li

The Cauchy problem to the Fokker-Planck-Boltzmann equation under Grad's angular cut-off assumption is investigated. When the initial data is a small perturbation of an equilibrium state, global existence and optimal temporal decay estimates…

偏微分方程分析 · 数学 2013-06-14 Linjie Xiong , Tao Wang , Lusheng Wang

In this paper, we prove the global existence of analytical solutions to the compressible Oldroyd-B model without retardation near a non-vacuum equilibrium in ${\mathbb R}^n$ $(n=2,3)$. Zero retardation results in zero dissipation in the…

偏微分方程分析 · 数学 2023-06-01 Xinghong Pan

This paper is a continuation of the works in \cite{Euler} and \cite{NS}, where the authors have established the global existence of smooth compressible flows in infinitely expanding balls for inviscid gases and viscid gases, respectively.…

偏微分方程分析 · 数学 2017-06-06 Huicheng Yin , Wenbin Zhao

For the spatially inhomogeneous, non-cutoff Boltzmann equation posed in the whole space $\mathbb R^3_x$, we establish pointwise lower bounds that appear instantaneously even if the initial data contains vacuum regions. Our lower bounds…

偏微分方程分析 · 数学 2020-05-29 Christopher Henderson , Stanley Snelson , Andrei Tarfulea

In recent years, the global existence of classical solutions to the Cauchy problem for 2D incompressible viscous MHD equations without magnetic diffusion has been proved in \cite{Ren,TZhang}, under the assumption that initial data is close…

偏微分方程分析 · 数学 2025-05-22 Shijin Ding , Ronghua Pan , Yi Zhu

We consider a modified Boltzmann equation which contains, together with the collision operator, an additional drift term that is characterized by a matrix A. Furthermore, we consider a Maxwell gas, where the collision kernel has an angular…

偏微分方程分析 · 数学 2026-03-31 Bernhard Kepka

In this paper, we prove the global existence of strong solutions for the inhomogeneous incompressible viscoelastic system without any additional structure assumptions on $\mathbb{R}^{3}$. Unlike the time weighted energy method presented by…

偏微分方程分析 · 数学 2026-03-03 Chengfei Ai , Mengxing Bei , Yong Wang

We prove a local-in-time existence and uniqueness theorem for a smooth classical solution to the spatially homogeneous Boltzmann equation with cutoff soft potentials. Our proof is based on a series of bilinear estimates for the…

偏微分方程分析 · 数学 2015-10-30 Yong-Kum Cho

We study long time behavior of some nonlinear discrete velocity kinetic equations in the one and three dimensions with periodic boundary conditions. We prove the exponential time decay of solutions towards the global equilibrium in the…

偏微分方程分析 · 数学 2025-08-06 Gayrat Toshpulatov

For a massless gas with constant cross section in a homogeneous, isotropically expanding spacetime we reformulate the relativistic Boltzmann equation as a set of non-linear coupled moment equations. For a particular initial condition this…

高能物理 - 唯象学 · 物理学 2016-01-20 D. Bazow , G. S. Denicol , U. Heinz , M. Martinez , J. Noronha