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We study the pointwise (in the space and time variables) behavior of the linearized Landau equation for hard and moderately soft potentials. The solution has very clear description in the $(x,t)-$variables, including large time behavior and…

数学物理 · 物理学 2017-09-12 Haitao Wang , Kung-Chien Wu

In this paper we study the Boltzmann equation near global Maxwellians in the $d$-dimensional whole space. A unique global-in-time mild solution to the Cauchy problem of the equation is established in a Chemin-Lerner type space with respect…

偏微分方程分析 · 数学 2017-12-06 Renjun Duan , Shota Sakamoto

We study the quantitative pointwise behavior of solutions to the Boltzmann equation for hard potentials and Maxwellian molecules, which generalize the hard sphere case introduced by Liu-Yu in 2004 (Comm. Pure Appl. Math. 57:1543-1608,…

偏微分方程分析 · 数学 2024-11-19 Yu-Chu Lin , Haitao Wang , Kung-Chien Wu

The goal of this paper is to extend the existence result of measure-valued solution to the Boltzmann equation in elastic interaction, given by Morimoto-Wang-Yang, to the inelastic Boltzmann equation with moderately soft potentials, also as…

偏微分方程分析 · 数学 2021-05-19 Kunlun Qi

We prove the existence and uniqueness of global solutions to the Boltzmann equation with non-cutoff soft potentials in the whole space when the initial data is a small perturbation of a Maxwellian with polynomial decay in velocity. Our…

偏微分方程分析 · 数学 2024-02-28 Kleber Carrapatoso , Pierre Gervais

We consider the spatially inhomogeneous non-cutoff Boltzmann equation with hard potentials in the non-perturbative setting. For initial data with polynomial decay in the velocity variable, we establish the local-in-time existence and…

偏微分方程分析 · 数学 2026-02-24 Hao-Guang Li , Wei-Xi Li , Chao-Jiang Xu

In this paper we study the large-time behavior of perturbative classical solutions to the hard and soft potential Boltzmann equation without the angular cut-off assumption in the whole space $\threed_x$ with $\DgE$. We use the existence…

偏微分方程分析 · 数学 2016-02-22 Robert M. Strain

We study the Cauchy problem for the relativistic Boltzmann equation near relativistic Maxwellians in the whole space. The purpose of this article is to handle hard potentials, and for initial data with finite $L^\infty$ norm, to construct…

偏微分方程分析 · 数学 2018-03-28 Koya Nishimura

A uniform approach is introduced to study the existence of measure valued solutions to the homogeneous Boltzmann equation for both hard potential with finite energy, and soft potential with finite or infinite energy, by using Toscani…

偏微分方程分析 · 数学 2016-11-23 Yoshinori Morimoto , Shuaikun Wang , Tong Yang

This is the first one of two papers on the global dynamics of the original Boltzmann equations without angular cutoff on the torus. We address the problem for the hard potentials and Maxwellian molecules in the present paper. The case of…

偏微分方程分析 · 数学 2017-12-18 Ling-Bing He , Jin-Cheng Jiang

This paper is to study the inelastic Boltzmann equation without Grad's angular cutoff assumption, where the well-posedness theory of the solution to the initial value problem is established for the Maxwellian molecules in a space of…

数学物理 · 物理学 2024-06-19 Kunlun Qi

In this work we present several quantitative results of convergence to equilibrium for the linear Boltzmann operator with soft potentials under Grad's angular cutoff assumption. This is done by an adaptation of the famous entropy method and…

偏微分方程分析 · 数学 2017-05-04 José Cañizo , Amit Einav , Bertrand Lods

For the Maxwellian molecules or hard potentials case, we verify the smoothing effect for the spatially inhomogeneous Boltzmann equation without angular cutoff. Given initial data with low regularity, we prove its solutions at any positive…

偏微分方程分析 · 数学 2024-01-22 Jun-Ling Chen , Wei-Xi Li , Chao-Jiang Xu

We consider solutions $f=f(t,x,v)$ to the full (spatially inhomogeneous) Boltzmann equation with periodic spatial conditions $x \in \mathbb T^d$, for hard and moderately soft potentials \emph{without the angular cutoff assumption}, and…

偏微分方程分析 · 数学 2019-04-01 Cyril Imbert , Clément Mouhot , Luis Silvestre

We consider the 3D Boltzmann equation for the Maxwellian particle and soft potential with an angular cutoff. We prove sharp global well-posedness with initial data small in the scaling-critical space. The solution also remains in $L^{1}$ if…

偏微分方程分析 · 数学 2023-11-06 Xuwen Chen , Shunlin Shen , Zhifei Zhang

We consider the non-cutoff Boltzmann equation in the spatially inhomogeneous, soft potentials regime, and establish decay estimates for large velocity. In particular, we prove that pointwise algebraically decaying upper bounds in the…

偏微分方程分析 · 数学 2023-11-07 Christopher Henderson , Stanley Snelson , Andrei Tarfulea

We consider the spatially inhomogeneous Boltzmann equation without angular cutoff for soft potentials. For any given initial datum such that the mass, energy and entropy densities are bounded and the mass is away from vacuum, we establish…

偏微分方程分析 · 数学 2024-10-18 Ling-Bing He , Jie Ji , Wei-Xi Li

In this paper, we deal with (angular cut-off) Boltzmann equation with soft potential ($-3<\gamma<0$). In particular, we construct a unique global solution in $L^\infty_{x,v}$ which converges to global equilibrium asymptotically provided…

偏微分方程分析 · 数学 2021-11-16 Gyounghun Ko , Donghyun Lee , Kwanghyuk Park

We establish pointwise polynomial decay estimates in velocity space for the spatially inhomogeneous Boltzmann equation without cutoff, in the case of hard potentials ($\gamma +2s > 2$), under the assumption that the mass, energy, and…

偏微分方程分析 · 数学 2020-06-24 Stephen Cameron , Stanley Snelson

We prove the well-posedness for the non-cutoff Boltzmann equation with soft potentials when the initial datum is close to the {\it global Maxwellian} and has only polynomial decay at the large velocities in $L^2$ space. As a result, we get…

偏微分方程分析 · 数学 2022-04-05 Chuqi Cao , Ling-Bing He , Jie Ji
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