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相关论文: H\"older estimates for nonlocal-diffusion equation…

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We study local boundedness and H\"older continuity of a parabolic equation involving the fractional $p$-Laplacian of order $s$, with $0<s<1$, $2\leq p < \infty$, with a general right hand side. We focus on obtaining precise H\"older…

偏微分方程分析 · 数学 2023-01-23 Alireza Tavakoli

We prove a necessary stationary condition for non-differentiable isoperimetric variational problems with scale derivatives, defined on the class of H\"{o}lder continuous functions.

最优化与控制 · 数学 2009-07-17 Ricardo Almeida , Delfim F. M. Torres

In this paper we address the regularity issues of drift-diffusion equation with nonlocal diffusion, where the diffusion operator is in the realm of stable-type L\'evy operator and the velocity field is defined from the considered quantity…

偏微分方程分析 · 数学 2019-07-22 Changxing Miao , Liutang Xue

In this paper we study generalized time-fractional diffusion equations on the Poincar\`e half plane $\mathbb{H}_2^+$. The time-fractional operators here considered are fractional derivatives of a function with respect to another function,…

数学物理 · 物理学 2020-07-24 R. Garra , F. Maltese , E. Orsingher

In this paper we obtain the existence of a radial solution for some elliptic nonlocal problem with constraints. The problem arises from some reaction-diffusion equation modelling among others system of self-gravitating particles when one…

偏微分方程分析 · 数学 2011-01-11 Robert Stańczy

We derive dispersion estimates for solutions of the one-dimensional discrete perturbed Dirac equation. To this end we develop basic scattering theory and establish a limiting absorption principle for discrete perturbed Dirac operators.

谱理论 · 数学 2015-11-11 Elena Kopylova , Gerald Teschl

We study the problem of unbiased estimation of expectations with respect to (w.r.t.) $\pi$ a given, general probability measure on $(\mathbb{R}^d,\mathcal{B}(\mathbb{R}^d))$ that is absolutely continuous with respect to a standard Gaussian…

统计计算 · 统计学 2022-10-26 Hamza Ruzayqat , Alexandros Beskos , Dan Crisan , Ajay Jasra , Nikolas Kantas

Numerical solutions of a non-Fickian diffusion equation belonging to a hyperbolic type are presented in one space dimension. The Brownian particle modelled by this diffusion equation is subjected to a symmetric periodic potential whose…

计算物理 · 物理学 2013-02-27 Adérito Araújo , Amal K. Das , Cidália Neves , Ercília Sousa

We study the quantitative homogenization of linear second order elliptic equations in non-divergence form with highly oscillating periodic diffusion coefficients and with large drifts, in the so-called ``centered'' setting where…

偏微分方程分析 · 数学 2023-07-10 Wenjia Jing , Yiping Zhang

In this article we are interested in the following non-linear Schr\"odinger equation with non-local regional diffusion $$ (-\Delta)_{\rho_\epsilon}^{\alpha}u + u = f(u) \hbox{ in } \mathbb{R}^n, \quad u \in H^\alpha(\mathbb{R}^n),…

偏微分方程分析 · 数学 2017-12-06 Claudianor O. Alves , César E. Torres Ledesma

This study handles spatial three-dimensional solution of the nonlinear diffusion equation without particular initial conditions. The functional behavior of the equation and the concentration have been studied in new ways. An auxiliary…

综合数学 · 数学 2020-03-16 Henrik Stenlund

This paper deals with a copies-based continuously differentiable and strictly decreasing estimator of the drift function for stochastic differential equations defining recurrent diffusion processes. The first part of our paper deals with…

统计理论 · 数学 2026-03-17 Nicolas Marie

We study integro-differential elliptic equations (of order $2s$) with variable coefficients, and prove the natural and most general Schauder-type estimates that can hold in this setting, both in divergence and non-divergence form.…

偏微分方程分析 · 数学 2023-08-23 Xavier Fernández-Real , Xavier Ros-Oton

The nonlocal Fisher equation is a diffusion-reaction equation with a nonlocal quadratic competition, which describes the reaction between distant individuals. This equation arises in evolutionary biological systems, where the arena for the…

斑图形成与孤子 · 物理学 2018-04-25 Yehuda A. Ganan , David A. Kessler

This paper is concerned with the It\^o stochastic differential equations with $\mR^{d\times k}$ diffusions in class of H\"older spaces and continuous $\mR^d$ drifts. We derive a uniqueness result of strong solutions for $\cC^\alpha \…

偏微分方程分析 · 数学 2025-07-21 Rongrong Tian , Shuheng Tu , Jinlong Wei

We prove the existence of solutions to a non-linear, non-local, degenerate equation which was previously derived as the formal hydrodynamic limit of an active Brownian particle system, where the particles are endowed with a position and an…

偏微分方程分析 · 数学 2023-10-02 Martin Burger , Simon Schulz

In the present work, we investigate the potential of fractional derivatives to model atmospheric dispersion of pollutants. We propose simple fractional differential equation models for the steady state spatial distribution of concentration…

大气与海洋物理 · 物理学 2017-02-22 A. G. O. Goulart , M. J. Lazo , J. M. S. Suarez , D. M. Moreira

We analyze the well-posedness of an anisotropic, nonlocal diffusion equation. Establishing an equivalence between weighted and unweighted anisotropic nonlocal diffusion operators in the vein of unified nonlocal vector calculus, we apply our…

偏微分方程分析 · 数学 2021-01-13 Marta D'Elia , Mamikon Gulian

We expand the classic variational formulation of $-\log\mathbb{E}\left[e^{-f}\right]$ to the case where f depends on a diffusion, and not only a on Brownian motion, while decreasing the integrability hypothesis on f. We also give an…

概率论 · 数学 2016-12-02 Kévin Hartmann

The aim of this work is to establish numerous interrelated gradient estimates in the nonlinear nonlocal setting. First of all, we prove that weak solutions to a class of homogeneous nonlinear nonlocal equations of possibly arbitrarily low…

偏微分方程分析 · 数学 2024-08-09 Lars Diening , Kyeongbae Kim , Ho-Sik Lee , Simon Nowak