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In this paper we study the Gevrey smoothing effect of solutions to the non-cutoff spatially homogeneous and inhomogeneous Boltzmann equation for soft potential. We consider the mild singularity case $s<1/2$ as we did in the previous work…

Analysis of PDEs · Mathematics 2013-12-19 Teng-Fei Zhang , Zhaoyang Yin

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

Departing from the weak solution, we prove the uniqueness, smoothing estimates and the global dynamics for the non cutoff spatially homogeneous Boltzmann equation with moderate soft potentials. Our results show that the behavior of the…

Analysis of PDEs · Mathematics 2022-04-05 Ling-Bing He , Jie Ji

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…

Analysis of PDEs · Mathematics 2024-01-22 Jun-Ling Chen , Wei-Xi Li , Chao-Jiang Xu

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…

Analysis of PDEs · Mathematics 2015-10-30 Yong-Kum Cho

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…

Analysis of PDEs · Mathematics 2026-02-24 Hao-Guang Li , Wei-Xi Li , Chao-Jiang Xu

In this paper it is shown that unique solutions to the relativistic Boltzmann equation exist for all time and decay with any polynomial rate towards their steady state relativistic Maxwellian provided that the initial data starts out…

Analysis of PDEs · Mathematics 2011-04-05 Robert M. Strain

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

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 consider a modified quantum Boltzmann equation with the quantum effect measured by a continuous parameter $\delta$ that can decrease from $\delta=1$ for the Fermi-Dirac particles to $\delta=0$ for the classical particles.…

Analysis of PDEs · Mathematics 2022-01-25 Zongguang Li

We consider the spatially inhomogeneous Landau equation with initial data that is bounded by a Gaussian in the velocity variable. In the case of moderately soft potentials, we show that weak solutions immediately become smooth and remain…

Analysis of PDEs · Mathematics 2019-11-06 Christopher Henderson , Stanley Snelson

In this paper we show the Gevrey regularizing effect of solutions to the non-cutoff spatially homogeneous and inhomogeneous Boltzmann equation for a particular soft potential with critical singularity s=1/2.

Analysis of PDEs · Mathematics 2013-12-23 Teng-Fei Zhang , Zhaoyang Yin

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

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…

Analysis of PDEs · Mathematics 2022-04-05 Chuqi Cao , Ling-Bing He , Jie Ji

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

We prove an inequality on the Wasserstein distance with quadratic cost between two solutions of the spatially homogeneous Boltzmann equation without angular cutoff, from which we deduce some uniqueness results. In particular, we obtain a…

Analysis of PDEs · Mathematics 2009-11-13 Nicolas Fournier , Hélène Guérin

We consider the $3D$ spatially homogeneous Boltzmann equation for (true) hard and moderately soft potentials. We assume that the initial condition is a probability measure with finite energy and is not a Dirac mass. For hard potentials, we…

Mathematical Physics · Physics 2015-03-17 Nicolas Fournier

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

In this paper we consider the Cauchy problem on the angular cutoff Boltzmann equation near global Maxwillians for soft potentials either in the whole space or in the torus. We establish the existence of global unique mild solutions in the…

Analysis of PDEs · Mathematics 2021-09-03 Zongguang Li

This article considers the spatially inhomogeneous, non-cutoff Boltzmann equation. We construct a large-data classical solution given bounded, measurable initial data with uniform polynomial decay of mild order in the velocity variable. Our…

Analysis of PDEs · Mathematics 2023-10-17 Christopher Henderson , Stanley Snelson , Andrei Tarfulea
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