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We apply recent results on regularity for general integro-differential equations to derive a priori estimates in H\"older spaces for the space homogeneous Boltzmann equation in the non cut-off case. We also show an a priori estimate in…

Analysis of PDEs · Mathematics 2016-04-01 Luis Silvestre

We study the Cauchy problem of the Kolmogorov-Fokker-Planck equations and show that the solution enjoys an analytic smoothing effect with L2 initial datum for positive time.

Analysis of PDEs · Mathematics 2023-09-22 Xiao-Dong Cao , Chao-Jiang Xu , Yan Xu

We study the Cauchy problem of the fractional Kramers-Fokker- Planck equation and show that the solution to the Cauchy problem enjoys an analytic Gelfand-Shilov regularizing effect for positive time.

Analysis of PDEs · Mathematics 2023-05-16 Chao-Jiang Xu , Yan Xu

This paper is concerned with the Boltzmann equation with specular reflection boundary condition. We construct a unique global solution and obtain its large time asymptotic behavior in the case that the initial data is close enough to a…

Analysis of PDEs · Mathematics 2016-04-21 Yan Guo , Shuangqian Liu

In this paper, we investigate the problems of Cauchy theory and exponential stability for the inhomogeneous Boltzmann equation without angular cut-off. We only deal with the physical case of hard potentials type interactions (with a…

Analysis of PDEs · Mathematics 2020-12-07 Frédéric Hérau , Daniela Tonon , Isabelle Tristani

We develop the regularity theory of the spatially homogeneous Boltzmann equation with cut-off and hard potentials (for instance, hard spheres), by (i) revisiting the Lp-theory to obtain constructive bounds, (ii) establishing propagation of…

Analysis of PDEs · Mathematics 2016-08-16 Clément Mouhot , Cédric Villani

We construct bounded classical solutions of the Boltzmann equation in the whole space without specifying any limit behaviors at the spatial infinity and without assuming the smallness condition on initial data. More precisely, we show that…

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

The smoothing effect of the Cauchy problem for a class of kinetic equations is studied. We firstly consider the spatially homogeneous non linear Landau equation with Maxwellian molecules and inhomogeneous linear Fokker-Planck equation to…

Analysis of PDEs · Mathematics 2009-11-21 Yoshinori Morimoto , Chao-Jiang Xu

This paper investigates the non-cutoff Boltzmann equation for hard potentials in a perturbative setting. We first establish a sharp short-time estimate on the radius of analyticity and Gevrey regularity of mild solutions. Furthermore, we…

Analysis of PDEs · Mathematics 2026-01-21 Wei-Xi Li , Lvqiao Liu , Hao Wang

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

It has long been suspected that the non-cutoff Boltzmann operator has similar coercivity properties as a fractional Laplacian. This has led to the hope that the homogenous Boltzmann equation enjoys similar regularity properties as the heat…

Analysis of PDEs · Mathematics 2017-07-24 Jean-Marie Barbaroux , Dirk Hundertmark , Tobias Ried , Semjon Vugalter

We consider the Cauchy problem of the nonlinear Landau equation of Maxwellian molecules, under the perturbation frame work to global equilibrium. We show that if $H^r_x(L^2_v), r >3/2$ norm of the initial perturbation is small enough, then…

Analysis of PDEs · Mathematics 2019-10-31 Yoshinori Morimoto , Chao-Jiang Xu

In this paper, we develop a functional analytical theory for establishing that mild solutions of first-order Cauchy problems involving homogeneous operators of order zero are strong solutions; in particular, the first-order time derivative…

Analysis of PDEs · Mathematics 2019-01-28 Daniel Hauer , Jose M. Mazon

We consider the Cauchy problem for an equation of Korteweg-de Vries-Kawahara type with initial data in the analytic Gevrey spaces. By using linear, bilinear and trilinear estimates in analytic Bourgain spaces, we establish the local…

Analysis of PDEs · Mathematics 2022-05-24 Aissa Boukarou , Daniel Oliveira da Silva

We study the Cauchy problem for a general inhomogeneous linear moment partial differential equation of two complex variables with constant coefficients, where the inhomogeneity is given by the formal power series. We state sufficient…

Analysis of PDEs · Mathematics 2018-01-12 Sławomir Michalik

In this paper we study the Gevrey regularity for the weak solutions to the Cauchy problem of the non-cutoff spatially homogeneous Botlzmann equation for the Maxwellian molecules model with the singularity exponent $s\in (0,1)$. We establish…

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

As a continuation of our series works on the Boltzmann equation without angular cutoff assumption, in this part, the global existence of solution to the Cauchy problem in the whole space is proved in some suitable weighted Sobolev spaces…

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

We study the spatially inhomogeneous Landau equations with hard potential in the perturbation setting, and establish the analytic smoothing effect in both spatial and velocity variables for a class of low-regularity weak solutions. This…

Analysis of PDEs · Mathematics 2022-05-09 Hongmei Cao , Wei-Xi Li , Chao-Jiang Xu

We consider a simplified Boltzmann equation: spatially homogeneous, two-dimensional, radially symmetric, with Grad's angular cutoff, and linearized around its initial condition. We prove that for a sufficiently singular velocity cross…

Analysis of PDEs · Mathematics 2007-12-21 Nicolas Fournier

A fully non-linear kinetic Boltzmann equation for anyons and large initial data is studied in a periodic 1d setting. Strong L1 solutions are obtained for the Cauchy problem. The main results concern global existence, uniqueness, and…

Mathematical Physics · Physics 2014-08-01 L. Arkeryd , A. Nouri