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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

We consider the Cauchy problem for the spatially inhomogeneous non-cutoff Boltzmann equation with polynomially decaying initial data in the velocity variable. We establish short-time existence for any initial data with this decay in a fifth…

Analysis of PDEs · Mathematics 2020-03-11 Christopher Henderson , Stanley Snelson , Andrei Tarfulea

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…

Analysis of PDEs · Mathematics 2020-06-24 Stephen Cameron , Stanley Snelson

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 Boltzmann equation with the soft potential and angular cutoff. Inspired by the methods from dispersive PDEs, we establish its sharp local well-posedness and ill-posedness in $H^{s}$ Sobolev space. We find the…

Analysis of PDEs · Mathematics 2024-11-14 Xuwen Chen , Shunlin Shen , Zhifei Zhang

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

In the present work, we investigate estimates of regularity for weak solutions to the non-cutoff Boltzmann equation with soft potentials. We restrict our focus to the so-called "typically rough and slowly decaying data", which is…

Analysis of PDEs · Mathematics 2023-08-11 Ling-Bing He , Jie Ji

We use the dispersive properties of the linear Schr\"{o}dinger equation to prove local well-posedness results for the Boltzmann equation and the related Boltzmann hierarchy, set in the spatial domain $\mathbb{R}^d$ for $d\geq 2$. The proofs…

Analysis of PDEs · Mathematics 2017-03-03 Thomas Chen , Ryan Denlinger , Nataša Pavlović

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 the global existence of the unique mild solution for the Cauchy problem of the cut-off Boltzmann equation for soft potential model $\gamma=2-N$ with initial data small in $L^N_{x,v}$ where $N=2,3$ is the dimension. The proof relies…

Analysis of PDEs · Mathematics 2017-08-02 Lingbing He , Jin-Cheng Jiang

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 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

This work is concerned with the generation of decay estimates in the velocity variable for solutions of the space-inhomogeneous Boltzmann equation without cutoff on a bounded spatial domain for hard and moderately soft potentials. We work…

Analysis of PDEs · Mathematics 2026-04-28 Cyril Imbert , Amélie Loher

We consider the spatially inhomogeneous non-cutoff Boltzmann equation with moderately soft potentials and any singularity parameter $s\in (0,1)$, i.e. with $\gamma+2s\in(0,2]$ on the whole space $\mathbb{R}^3$. We prove that if the initial…

Analysis of PDEs · Mathematics 2021-06-08 Sanchit Chaturvedi

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

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…

Analysis of PDEs · Mathematics 2023-11-07 Christopher Henderson , Stanley Snelson , Andrei Tarfulea

In this paper, we consider the global well-posedness to the non-cutoff Boltzmann equation with soft potential in the $L^\infty$ setting. We show that when the initial data is close to equilibrium and the perturbation is small in $L^2 \cap…

Analysis of PDEs · Mathematics 2022-10-19 Chuqi Cao

In this paper, we get the quantitative space-time behavior of the full Boltzmann equation with soft potentials ($-2<\gamma <0$) in the close to equilibrium setting, under some velocity decay assumption, but without any Sobolev regularity…

Analysis of PDEs · Mathematics 2021-12-21 Yu-Chu Lin , Ming-Jiea Lyu , Haitao Wang , Kung-Chien Wu

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…

Analysis of PDEs · Mathematics 2019-04-01 Cyril Imbert , Clément Mouhot , Luis Silvestre

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
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