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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…

Mathematical Physics · Physics 2024-06-19 Kunlun Qi

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…

Analysis of PDEs · Mathematics 2016-11-23 Yoshinori Morimoto , Shuaikun Wang , Tong Yang

We study the quantitative pointwise behavior of the solutions of the linearized Boltzmann equation for hard potentials, Maxwellian molecules and soft potentials, with Grad's angular cutoff assumption. More precisely, for solutions inside…

Analysis of PDEs · Mathematics 2018-06-13 Yu-Chu Lin , Haitao Wang , Kung-Chien Wu

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…

Analysis of PDEs · Mathematics 2024-02-28 Kleber Carrapatoso , Pierre Gervais

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…

Analysis of PDEs · Mathematics 2024-10-18 Ling-Bing He , Jie Ji , Wei-Xi Li

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…

Analysis of PDEs · Mathematics 2017-05-04 José Cañizo , Amit Einav , Bertrand Lods

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…

Analysis of PDEs · Mathematics 2017-12-18 Ling-Bing He , Jin-Cheng Jiang

The spatially homogeneous Boltzmann equation with hard potentials is considered for measure valued initial data having finite mass and energy. We prove the existence of \emph{weak measure solutions}, with and without angular cutoff on the…

Analysis of PDEs · Mathematics 2012-02-22 Xuguang Lu , Clément Mouhot

It is known that the singularity in the non-cutoff cross-section of the Boltzmann equation leads to the gain of regularity and gain of weight in the velocity variable. By defining and analyzing a non-isotropy norm which precisely captures…

Analysis of PDEs · Mathematics 2010-10-28 Radjesvarane Alexandre , Yoshinori Morimoto , Seiji Ukai , Chao-Jiang Xu , Tong Yang

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…

Analysis of PDEs · Mathematics 2021-11-16 Gyounghun Ko , Donghyun Lee , Kwanghyuk Park

This paper is concerned with the inelastic Boltzmann equation without angular cutoff. We work in the spatially homogeneous case. We establish the global-in-time existence of measure-valued solutions under the generic hard potential…

Analysis of PDEs · Mathematics 2023-04-14 Jin Woo Jang , Kunlun Qi

We prove uniqueness of self-similar profiles for the one-dimensional inelastic Boltzmann equation with moderately hard potentials, that is with collision kernel of the form | $\bullet$ | $\gamma$ for $\gamma$ > 0 small enough (explicitly…

Analysis of PDEs · Mathematics 2022-11-08 Ricardo J. Alonso , Véronique Bagland , José A. Cañizo , Bertrand Lods , Sebastian Throm

The paper considers the convergence to equilibrium for measure solutions of the spatially homogeneous Boltzmann equation for hard potentials with angular cutoff. We prove the exponential sharp rate of strong convergence to equilibrium for…

Analysis of PDEs · Mathematics 2015-01-27 Lu Xuguang , Clément Mouhot

We consider a coupled system of partial and ordinary differential equations describing the interaction between an isentropic inviscid fluid and a rigid body moving freely inside the fluid. We prove the existence of measure-valued solutions…

Analysis of PDEs · Mathematics 2022-06-07 Matteo Caggio , Ondřej Kreml , Šárka Nečasová , Arnab Roy , Tong Tang

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…

Analysis of PDEs · Mathematics 2023-11-06 Xuwen Chen , Shunlin Shen , Zhifei Zhang

We prove an inequality on the Kantorovich-Rubinstein distance --which can be seen as a particular case of a Wasserstein metric-- between two solutions of the spatially homogeneous Boltzmann equation without angular cutoff, but with a…

Analysis of PDEs · Mathematics 2010-02-02 Nicolas Fournier , Clément Mouhot

The purpose of this paper is to show how the combination of the well-known results for convergence to equilibrium and conditional regularity, in addition to a short-time existence result, lead to a quick proof of the existence of global…

Analysis of PDEs · Mathematics 2022-05-20 Luis Silvestre , Stanley Snelson

The existence of global renormalized solutions to the Boltzmann equation with long-range interactions without angular cutoff was first established by Alexandre and Villani [Comm. Pure Appl. Math., 55(1), 30-70, 2002]. Their result relies on…

Analysis of PDEs · Mathematics 2026-02-16 Yi-Long Luo , Jing-Xin Nie

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…

Analysis of PDEs · Mathematics 2017-12-06 Renjun Duan , Shota Sakamoto

We consider the $n$-dimensional space homogeneous Boltzmann equation for elastic collisions for variable hard potentials with Grad (angular) cutoff. We prove sharp moment inequalities, the propagation of $L^1$-Maxwellian weighted estimates,…

Analysis of PDEs · Mathematics 2007-10-30 Ricardo J. Alonso , Irene M. Gamba
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