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The existence and stability of collisional kinetic equation, especially non-cutoff Boltzmann equation, in bounded domain with physical boundary condition is longstanding open problem. This work proves the global stability of the Landau…

偏微分方程分析 · 数学 2021-06-09 Dingqun Deng

We study the Cauchy problem for the Gross-Pitaevskii equation with a nonlocal interaction potential of Hartree type in three space dimensions. If the potential is even and positive definite or a positive function and its Fourier transform…

偏微分方程分析 · 数学 2012-10-08 Hartmut Pecher

In this paper we establish the global in time existence and uniqueness of solutions to the Boltzmann hierarchy, a hierarchy of equations instrumental for the rigorous derivation of the Boltzmann equation from many particles. Inspired by…

偏微分方程分析 · 数学 2024-02-02 Ioakeim Ampatzoglou , Joseph K. Miller , Nataša Pavlović , Maja Tasković

In this paper, we consider the spatially inhomogeneous diffusively driven inelastic Boltzmann equation in different cases: the restitution coefficient can be constant or can depend on the impact velocity (which is a more physically relevant…

偏微分方程分析 · 数学 2015-12-04 Isabelle Tristani

We prove the global existence and uniqueness of classical solutions around an equilibrium to the Boltzmann equation without angular cutoff in some Sobolev spaces. In addition, the solutions thus obtained are shown to be non-negative and…

偏微分方程分析 · 数学 2010-10-28 Radjesvarane Alexandre , Y. Morimoto , Seiji Ukai , Chao-Jiang Xu , Tong Yang

In this paper the global existence of weak solutions to the relativistic BGK model for the relativistic Boltzmann equation is analyzed. The proof relies on the strong compactness of the density, velocity and temperature under minimal…

偏微分方程分析 · 数学 2019-02-21 Juan Calvo , Pierre-Emmanuel Jabin , Juan Soler

This paper aims to incorporate the Caflisch's decomposition into the macro-micro decomposition in Boltzmann theory for allowing the microscopic component to exhibit only the polynomial tail in large velocities. In particular, we treat the…

偏微分方程分析 · 数学 2024-07-12 Renjun Duan , Zongguang Li

We give quantitative estimates on the asymptotics of the linearized Boltzmann collision operator and its associated equation from angular cutoff to non cutoff. On one hand, the results disclose the link between the hyperbolic property…

偏微分方程分析 · 数学 2021-07-01 Ling-Bing He , Yu-Long Zhou

Consider, in dimension 3, a system of coupled Klein-Gordon equations with different speeds, and an arbitrary quadratic nonlinearity. We show, for data which are small, smooth, and localized, that a global solution exists, and that it…

偏微分方程分析 · 数学 2010-05-31 Pierre Germain

This paper establishes the global well-posedness of the multi-species Boltzmann equation with large-amplitude initial data in the periodic domain $\mathbb{T}^3$. In contrast to the single-species case, the multi-species mixture model lacks…

偏微分方程分析 · 数学 2026-05-12 Gyounghun Ko , Myeong-Su Lee , Sung-Jun Son

This paper is concerned with the relativistic Boltzmann equation without angular cutoff. We establish the global-in-time existence, uniqueness, and asymptotic stability for solutions nearby the relativistic Maxwellian. We work in the case…

偏微分方程分析 · 数学 2022-07-08 Jin Woo Jang , Robert M. Strain

We consider the Boltzmann operator for mixtures with cutoff Maxwellian, hard potentials, or hard spheres collision kernels. In a perturbative regime around the global Maxwellian equilibrium, the linearized Boltzmann multi-species operator…

数学物理 · 物理学 2018-11-21 Andrea Bondesan , Laurent Boudin , Marc Briant , Bérénice Grec

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 derive quantitatively the Harnack inequalities for kinetic integro-differential equations. This implies H\"older continuity. Our method is based on trajectories and exploits a term arising due to the non-locality in the energy estimate.…

偏微分方程分析 · 数学 2024-01-09 Amélie Loher

Existence of global regular solution branches of the Boltzmann Cauchy problem with continuously differentiable data in phase space dimension $2d\geq 6$ with polynomial decay at infinity of order greater than $2d$ is proved. There are data…

偏微分方程分析 · 数学 2016-01-07 Jörg Kampen

We prove quantitative growth estimates for large data solutions to the 1D Boltzmann equation, for a collision kernel with angular cutoff and relative velocity cutoff. We present proofs for the global well-posedness results presented in the…

偏微分方程分析 · 数学 2023-10-24 Dominic Wynter

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…

偏微分方程分析 · 数学 2015-01-27 Lu Xuguang , Clément Mouhot

We consider the spatially homogeneous Boltzmann equation for hard potentials without cutoff. We prove that an exponential moment of order $\rho=\min\{2\gamma/(2-\nu),2\}$, with the usual notation, is immediately created. This is stronger…

偏微分方程分析 · 数学 2021-09-22 Nicolas Fournier

We obtain finite-time existence for the massless Boltzmann equation, with a range of soft cross-sections, in an FLRW background with data given at the initial singularity. In the case of positive cosmological constant we obtain long-time…

广义相对论与量子宇宙学 · 物理学 2020-01-29 Ho Lee , Ernesto Nungesser , Paul Tod

In this paper we are interested in the coupled wave and Klein-Gordon equations in $\mathbb{R}^+\times\mathbb{R}^2$. We want to establish the global well-posedness of such system by showing the uniform boundedness of the energy for the…

偏微分方程分析 · 数学 2023-12-06 Xinyu Cheng