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In this paper, by establishing the $L^p$-$L^q$ estimate and Sobolev estimates for parabolic partial differential equations with a singular first order term and a Lipschitz first order term, a new Zvonkin-type transformation is given for…

概率论 · 数学 2020-09-02 Chenggui Yuan , Shao-Qin Zhang

We provide Lipschitz regularity for solutions to viscous time-dependent Hamilton-Jacobi equations with right-hand side belonging to Lebesgue spaces. Our approach is based on a duality method, and relies on the analysis of the regularity of…

偏微分方程分析 · 数学 2020-01-28 Marco Cirant , Alessandro Goffi

Equation of long-range particle drift and diffusion on three-dimensional physical lattice is suggested. This equation can be considered as a lattice analogof space-fractional Fokker-Planck equation for continuum. The lattice approach gives…

统计力学 · 物理学 2015-03-13 Vasily E. Tarasov

We study time averages for the norm of solutions to kinetic Fokker--Planck equations associated with general Hamiltonians. We provide fully explicit and constructive decay estimates for systems subject to a confining potential, allowing…

偏微分方程分析 · 数学 2025-11-06 Giovanni Brigati , Gabriel Stoltz

We are interested in the time asymptotic location of the level sets of solutions to Fisher-KPP reaction-diffusion equations with fractional diffusion in periodic media. We show that the speed of propagation is exponential in time, with a…

偏微分方程分析 · 数学 2012-09-24 Xavier Cabre , Anne-Charline Coulon , Jean-Michel Roquejoffre

The goal of this note is to state the optimal decay rate for solutions of the nonlinear fast diffusion equation and, in self-similar variables, the optimal convergence rates to Barenblatt self-similar profiles and their generalizations. It…

偏微分方程分析 · 数学 2015-05-13 Matteo Bonforte , Jean Dolbeault , Gabriele Grillo , Juan-Luis Vázquez

We are concerned with large-time behaviors of solutions for Vlasov--Navier--Stokes equations in two dimensions and Vlasov-Stokes system in three dimensions including the effect of velocity alignment/misalignment. We first revisit the…

偏微分方程分析 · 数学 2020-07-14 Young-Pil Choi , Kyungkeun Kang , Hwa Kil Kim , Jae-Myoung Kim

Fractional Fokker-Planck equation plays an important role in describing anomalous dynamics. To the best of our knowledge, the existing discussions mainly focus on this kind of equation involving one diffusion operator. In this paper, we…

数值分析 · 数学 2021-09-08 Jing Sun , Weihua Deng , Daxin Nie

We derive explicit solutions for time-fractional anomalous diffusion equations with diffusivity coefficients that depend on both space and time variables. These solutions are expressed in Fox-H and generalized Wright functions, which are…

偏微分方程分析 · 数学 2024-05-14 Ganbileg Bat-Ochir , Khongorzul Dorjgotov , Uuganbayar Zunderiya

We study solution techniques for parabolic equations with fractional diffusion and Caputo fractional time derivative, the latter being discretized and analyzed in a general Hilbert space setting. The spatial fractional diffusion is realized…

数值分析 · 数学 2015-03-05 Ricardo H. Nochetto , Enrique Otarola , Abner J. Salgado

This paper discusses finite time extinction for a perturbed fast diffusion equation with dynamic boundary conditions. The fast diffusion equation has the characteristic property of decay, such as the solution decays to zero in a finite…

偏微分方程分析 · 数学 2020-09-03 Takeshi Fukao

Of primary interest in this paper is the numerical approximation of a time dependent fractional, in space, diffusion equation where the domain is assumed to be nonhomogeneous, having different axial diffusion coefficients. This work is…

数值分析 · 数学 2026-05-12 T. Catoe , V. J. Ervin

This paper concerns continuous dependence estimates for Hamilton-Jacobi-Bellman-Isaacs operators (briefly, HJBI). For the parabolic Cauchy problem, we establish such an estimate in the whole space $[0,+\infty)\times\Rn$. Moreover, under…

偏微分方程分析 · 数学 2010-08-02 Claudio Marchi

We derive continuous dependence estimates for weak entropy solutions of degenerate parabolic equations with nonlinear fractional diffusion. The diffusion term involves the fractional Laplace operator, $\Delta^{\alpha/2}$ for $\alpha \in…

偏微分方程分析 · 数学 2015-10-06 Nathael Alibaud , Simone Cifani , Espen Jakobsen

We study the convergence analysis for general degenerate and non-reversible stochastic differential equations (SDEs). We apply the Lyapunov method to analyze the Fokker-Planck equation, in which the Lyapunov functional is chosen as a…

动力系统 · 数学 2025-02-17 Qi Feng , Wuchen Li

We consider the Cauchy problem of fractional pseudo-parabolic equation on the whole space $R^n,n\geq 1$. Here, the fractional order $\alpha$ is related to the diffusion-type source term behaving as the usual diffusion term on the high…

偏微分方程分析 · 数学 2017-03-28 Lingyu Jin , Lang Li , Shaomei Fang

We will show that the same type of estimates known for the fundamental solutions for scalar parabolic equations with smooth enough coefficients hold for the first order derivatives of fundamental solution with respect to space variables of…

偏微分方程分析 · 数学 2009-06-25 Michele Di Cristo , Kyoungsun Kim , Gen Nakamura

We prove duality estimates for time-fractional and more general subdiffusion problems. An important example is given by subdiffusive porous medium type equations. Our estimates can be used to prove uniqueness of weak solutions to such…

偏微分方程分析 · 数学 2025-09-10 Arlúcio Viana , Patryk Wolejko , Rico Zacher

There is increased interest in time-dependent (non-autonomous) Hamiltonians, stemming in part from the active field of Floquet quantum materials. Despite this, dispersive time-decay bounds, which reflect energy transport in such systems,…

偏微分方程分析 · 数学 2025-04-02 Joseph Kraisler , Amir Sagiv , Michael I. Weinstein

In this paper we continue the analysis of the dispersive properties of the 2D and 3D massless Dirac-Coulomb equations that has been started in arXiv:1503.00945 and arXiv:2101.07185. We prove a priori estimates of the solution of the…

偏微分方程分析 · 数学 2024-10-16 Elena Danesi