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相关论文: Fractional high order thin film equation: gradient…

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Fractional diffusion equations replace the integer-order derivatives in space and time by their fractional-order analogues. They are used in physics to model anomalous diffusion. This paper develops strong solutions of space-time fractional…

概率论 · 数学 2016-12-19 Zhen-Qing Chen , Mark M. Meerschaert , Erkan Nane

We prove existence and uniqueness of solutions to a class of porous media equations driven by the fractional Laplacian when the initial data are positive finite Radon measures on the Euclidean space. For given solutions without a prescribed…

偏微分方程分析 · 数学 2015-08-04 Gabriele Grillo , Matteo Muratori , Fabio Punzo

We prove the existence of global-in-time weak solutions to volume-preserving mean curvature flow with in the presence of obstacles by the phase field method in all dimensions. Namely, we prove the convergence of solutions to the Allen-Cahn…

偏微分方程分析 · 数学 2025-03-04 Jiwoong Jang

We consider a class of time-homogeneous diffusion processes on $\mathbb{R}^{n}$ with common invariant measure but varying volatility matrices. In Euclidean space, we show via stochastic control of the diffusion coefficient that the…

概率论 · 数学 2023-10-31 Bertram Tschiderer

We review recent progress in the fractional Calder\'on problem, where one tries to determine an unknown coefficient in a fractional Schr\"odinger equation from exterior measurements of solutions. This equation enjoys remarkable uniqueness…

偏微分方程分析 · 数学 2018-02-16 Mikko Salo

We consider an equation modeling the evolution of a viscous liquid thin film wetting a horizontal solid substrate destabilized by an electric field normal to the substrate. The effects of the electric field are modeled by a lower order…

偏微分方程分析 · 数学 2012-07-03 Cyril Imbert , Antoine Mellet

We study a second order scheme for spatial fractional differential equations with variable coefficients. Previous results mainly concentrate on equations with diffusion coefficients that are proportional to each other. In this paper, by…

数值分析 · 数学 2017-08-18 Seakweng Vong , Pin Lyu

A moderately thick spray can be described by a coupled system of equations consisting of the incompressible Navier-Stokes equations and the Vlasov-Boltzmann equation. We investigate this kind of mathematical model in this paper. In…

偏微分方程分析 · 数学 2017-10-17 Lei Yao , Cheng Yu

We are concerned in this paper with the degenerate fractional diffusion advection equations posed in bounded domains. Due to a suitable formulation, we show the existence of weak entropy solutions for measurable and bounded initial and…

偏微分方程分析 · 数学 2022-10-10 Gerardo Huaroto , Wladimir Neves

We consider the obstacle problem of the weak solution for the mean curvature flow, in the sense of Brakke's mean curvature flow. We prove the global existence of the weak solution with obstacles which have $C^{1,1}$ boundaries, in two and…

偏微分方程分析 · 数学 2021-08-30 Keisuke Takasao

This paper investigates the gradient flow structure, well-posedness, and asymptotic behavior of the Fokker-Planck equation defined on locally uniformly finite graphs, which is highly non-trivial compared with the finite case. We first…

概率论 · 数学 2025-11-13 Cong Wang

In thin topological insulator films, the top and bottom surfaces are coupled by tunneling, which restores backscattering and strongly affects screening. We calculate the dielectric function in the random phase approximation obtaining a…

介观与纳米尺度物理 · 物理学 2014-05-19 Weizhe Edward Liu , Hong Liu , Dimitrie Culcer

The well-posedness of a phase-field approximation to the Willmore flow with volume constraint is established. The existence proof relies on the underlying gradient flow structure of the problem: the time discrete approximation is solved by…

偏微分方程分析 · 数学 2010-04-05 Pierluigi Colli , Philippe Laurençot

In this paper we prove the existence of global weak dissipative martingale solutions for a one-dimensional compressible fluid model with capillarity and density dependent viscosity, driven by random initial data and a stochastic forcing…

偏微分方程分析 · 数学 2024-12-17 Donatella Donatelli , Lorenzo Pescatore , Stefano Spirito

We consider the stochastic thin-film equation with colored Gaussian Stratonovich noise in one space dimension and establish the existence of nonnegative weak (martingale) solutions. The construction is based on a Trotter-Kato-type…

概率论 · 数学 2022-08-02 Benjamin Gess , Manuel V. Gnann

In this paper, we investigate the well-posedness of weak solutions to the time-fractional Fokker-Planck equation. Its dynamics is governed by anomalous diffusion, and we consider the most general case of space-time dependent forces.…

偏微分方程分析 · 数学 2023-08-01 Marvin Fritz

The fractional diffusion equation is rigorously derived as a scaling limit from a deterministic Rayleigh gas, where particles interact via short range potentials with support of size $\varepsilon$ and the background is distributed in space…

偏微分方程分析 · 数学 2025-11-04 Karsten Matthies , Theodora Syntaka

In this work we prove an analogue, for partial differential equations on the space of probability measures, of the classical vanishing viscosity result known for equations on the Euclidean space. Our result allows in particular to show that…

概率论 · 数学 2022-06-07 Ludovic Tangpi

In this paper, we consider the fractional Navier-Stokes equations. We extend a previous non-uniqueness result due to Cheskidov and Luo, found in [5], from Navier-Stokes to the fractional case, and from $L^1$-in-time, $W^{1,q}$-in-space…

偏微分方程分析 · 数学 2023-12-06 Michele Gorini

The main purpose of this paper is to study weak solutions of time-fractional of porous medium equation with nonlocal pressure: \[ \partial^\alpha_t u=\operatorname{div}\left( |u|^{m}\nabla (-\Delta)^{-s} u\right) \,\, \text{in }…

偏微分方程分析 · 数学 2023-06-01 Nguyen Anh Dao , Anh Nguyen Vu Tien