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This paper deals with the space-homogenous Landau equation with very soft potentials, including the Coulomb case. This nonlinear equation is of parabolic type with diffusion matrix given by the convolution product of the solution with the…

Analysis of PDEs · Mathematics 2024-01-24 François Golse , Cyril Imbert , Sehyun Ji , Alexis F. Vasseur

We consider the Landau equation with Coulomb potential in the spatially homogeneous case. We show short time propagation of smallness in $L^p$ norms for $p>3/2$ and instantaneous regularization in Sobolev spaces. This yields new short time…

Analysis of PDEs · Mathematics 2024-03-27 William Golding , Maria Gualdani , Amélie Loher

This paper deals with the derivation of some \'a priori estimates for the homogeneous Landau equation with soft potentials. Using the coercivity of the Landau operator for soft potentials, we prove a global estimate of weak solutions in…

Analysis of PDEs · Mathematics 2013-04-02 Radjesvarane Alexandre , Jie Liao , Chunjin Lin

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

We present in this document some essential properties of solutions to the homogeneous Landau-Fermi-Dirac equation for moderately soft potentials. Uniform in time estimates for statistical moments, $L^{p}$-norm generation and Sobolev…

Analysis of PDEs · Mathematics 2022-05-04 Ricardo Alonso , Véronique Bagland , Laurent Desvillettes , Bertrand Lods

In this paper, we consider the spatially homogeneous Landau equation, which is a variation of the Boltzmann equation in the grazing collision limit. For the Landau equation for hard potentials in the style of Desvillettes-Villani (Comm.…

Analysis of PDEs · Mathematics 2025-01-27 Jin Woo Jang , Junha Kim

We consider the homogeneous Landau equation with Coulomb potential and general initial data $f_{in} \in L^p$, where $p$ is arbitrarily close to $3/2$. We show the local-in-time existence and uniqueness of smooth solutions for such initial…

Analysis of PDEs · Mathematics 2024-01-03 William Golding , Amélie Loher

We introduce a practical criterion that justifies the propagation and appearance of $L^{p}$-norms for the solutions to the spatially homogeneous Boltzmann equation with very soft potentials without cutoff. Such criterion also provides a new…

Analysis of PDEs · Mathematics 2025-06-30 Ricardo J. Alonso , Pierre Gervais , Bertrand Lods

This work deals with the Landau equation for very soft and Coulomb potentials near the associated Maxwellian equilibrium. We first investigate the corresponding linearized operator and develop a method to prove stability estimates of its…

Analysis of PDEs · Mathematics 2017-01-10 Kleber Carrapatoso , Stéphane Mischler

We consider the homogeneous Landau equation in $\mathbb{R}^3$ with Coulomb potential and initial data in polynomially weighted $L^{3/2}$. We show that there exists a smooth solution that is bounded for all positive times. The proof is based…

Analysis of PDEs · Mathematics 2025-05-09 William Golding , Maria Gualdani , Amélie Loher

We consider a parabolic equation in nondivergence form, defined in the full space $[0,\infty) \times \mathbb R^d$, with a power nonlinearity as the right hand side. We obtain an upper bound for the solution in terms of a weighted control in…

Analysis of PDEs · Mathematics 2016-08-23 Luis Silvestre

This paper investigates the Cauchy problem of the spatially homogeneous Landau equation with soft potential under the perturbation framework to global equilibrium. We prove that the solution to the Cauchy problem exhibits analyticity in the…

Analysis of PDEs · Mathematics 2025-03-04 Xiao-Dong Cao , Chao-Jiang Xu , Yan Xu

We establish the well-posedness and some quantitative stability of the spatially homogeneous Landau equation for hard potentials, using some specific Monge-Kantorovich cost, assuming only that the initial condition is a probability measure…

Analysis of PDEs · Mathematics 2021-01-27 Nicolas Fournier , Daniel Heydecker

We consider the spatially inhomogeneous Landau equation in the case of very soft and Coulomb potentials, $\gamma \in [-3,-2]$. We show that solutions can be continued as long as the following three quantities remain finite, uniformly in $t$…

Analysis of PDEs · Mathematics 2026-02-19 Stanley Snelson , Caleb Solomon

We consider the spatially homogeneous Landau equation of kinetic theory, and provide a differential inequality for the Wasserstein distance with quadratic cost between two solutions. We deduce some well-posedness results. The main…

Probability · Mathematics 2008-12-18 Hélène Guerin , Nicolas Fournier

We establish a priori upper bounds for solutions to the spatially inhomogeneous Landau equation in the case of moderately soft potentials, with arbitrary initial data, under the assumption that mass, energy and entropy densities stay under…

Analysis of PDEs · Mathematics 2017-01-31 Stephen Cameron , Luis Silvestre , Stanley Snelson

We establish a priori estimates showing the propagation and generation of $L^p$-norms for solutions to the non-cutoff spatially homogeneous Boltzmann equation with soft potentials. The singularity of the collision kernel is key to generate…

Analysis of PDEs · Mathematics 2024-06-06 Matt Spragge , Weiran Sun

We investigate in this work the rate of convergence to equilibrium of solutions to the spatially homogeneous Landau equation with soft potentials. Firstly, we prove a polynomial in time convergence using an entropy method with some new a…

Analysis of PDEs · Mathematics 2015-03-25 Kleber Carrapatoso

The paper continues the analysis started in [Cora-Fioravanti-Vita-25,Fioravanti-24] on the local regularity theory for elliptic equations having coefficients which are degenerate or singular on some lower dimensional manifold. The model…

Analysis of PDEs · Mathematics 2025-05-23 Gabriele Cora , Gabriele Fioravanti , Stefano Vita

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
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