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相关论文: Well-posedness of time-fractional, advection-diffu…

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We study the well-posedness for initial boundary value problems associated with time fractional diffusion equations with non-homogenous boundary and initial values. We consider both weak and strong solutions for the problems. For weak…

偏微分方程分析 · 数学 2020-04-30 Yavar Kian , Masahiro Yamamoto

We consider the well-posedness of the initial-boundary value problem for a time-fractional partial differential equation with the fractional order lying in (1,2]. For the case of time-dependent coefficients, it is difficult to give an…

偏微分方程分析 · 数学 2025-05-23 Xinchi Huang , Masahiro Yamamoto

We examine initial-boundary value problems for diffusion equations with distributed order time-fractional derivatives. We prove existence and uniqueness results for the weak solution to these systems, together with its continuous dependency…

偏微分方程分析 · 数学 2017-09-21 Zhiyuan Li , Yavar Kian , Eric Soccorsi

This article deals with the initial-boundary value problem for a moderately coupled system of time-fractional diffusion equations. Defining the mild solution, we establish fundamental unique existence, limited smoothing property and…

偏微分方程分析 · 数学 2023-03-23 Zhiyuan Li , Xinchi Huang , Yikan Liu

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

We investigate the behavior of the time derivatives of the solution to a linear time-fractional, advection-diffusion-reaction equation, allowing space- and time-dependent coefficients as well as initial data that may have low regularity.…

偏微分方程分析 · 数学 2020-03-24 William McLean , Kassem Mustapha , Raed Ali , Omar M. Knio

In this paper, we investigate the well-posedness and the long-time asymptotic behavior for the initial-boundary value problem for multi-term time-fractional diffusion equations, where the time differentiation consists of a finite summation…

偏微分方程分析 · 数学 2023-01-02 Zhiyuan Li , Yikan Liu , Masahiro Yamamoto

We discuss an initial-boundary value problem for a fractional diffusion equation with Caputo time-fractional derivative where the coefficients are dependent on spatial and time variables and the zero Dirichlet boundary condition is…

偏微分方程分析 · 数学 2018-06-12 Adam Kubica , Masahiro Yamamoto

A reaction-diffusion equation with power nonlinearity formulated either on the half-line or on the finite interval with nonzero boundary conditions is shown to be locally well-posed in the sense of Hadamard for data in Sobolev spaces. The…

偏微分方程分析 · 数学 2018-10-15 A. Alexandrou Himonas , Dionyssios Mantzavinos , Fangchi Yan

We investigate a coagulation-fragmentation equation with boundary data, establishing the well-posedness of the initial value problem when the coagulation kernels are bounded at zero and showing existence of solutions for the singular…

偏微分方程分析 · 数学 2020-11-24 Iñigo U. Erneta

In this paper, we are concerned with the stochastic time-fractional diffusion-wave equations in a Hilbert space. The main objective of this paper is to establish properties of the stochastic weak solutions of the initial-boundary value…

偏微分方程分析 · 数学 2023-06-28 Matti Lassas , Zhiyuan Li , Zhidong Zhang

Solutions of boundary value problems for a diffusion equation of fractional and variable order in differential and difference settings are studied. It is shown that the method of energy inequalities is applicable to obtaining a priori…

数值分析 · 数学 2012-11-22 A. A. Alikhanov

We study an initial-boundary value problem of variable-order time-fractional diffusion equations in one space dimension. Based on the wellposedness of the proposed model and the smoothing properties of its solutions, which are shown to be…

偏微分方程分析 · 数学 2020-01-08 Xiangcheng Zheng , Jin Cheng , Hong Wang

In this paper, we study the asymptotic estimate of solution for a mixed-order time-fractional diffusion equation in a bounded domain subject to the homogeneous Dirichlet boundary condition. Firstly, the unique existence and regularity…

偏微分方程分析 · 数学 2021-08-26 Zhiyuan Li , Xinchi Huang , Masahiro Yamamoto

In this paper, we discuss an initial-boundary value problem (IBVP) for the multi-term time-fractional diffusion equation with x-dependent coefficients. By means of the Mittag-Leffler functions and the eigenfunction expansion, we reduce the…

偏微分方程分析 · 数学 2018-02-20 Zhiyuan Li , Xinchi Huang , Masahiro Yamamoto

In recent work, we used pseudo-differential theory to establish conditions that the initial-boundary value problem for second order systems of wave equations be strongly well-posed in a generalized sense. The applications included the…

广义相对论与量子宇宙学 · 物理学 2009-11-13 H. -O. Kreiss , O. Reula , O. Sarbach , J. Winicour

We consider boundary value problems of the first and third kind for the diffusionwave equation. By using the method of energy inequalities, we find a priori estimates for the solutions of these boundary value problems.

数值分析 · 数学 2011-05-24 A. A. Alikhanov

The diffusion system with time-fractional order derivative is of great importance mathematically due to the nonlocal property of the fractional order derivative, which can be applied to model the physical phenomena with memory effects. We…

偏微分方程分析 · 数学 2021-03-24 Mengmeng Zhang , Jijun Liu

We consider an initial-boundary value problem for the time-fractional diffusion equation. We prove the equivalence of two notions of weak solutions, viscosity solutions and distributional solutions.

偏微分方程分析 · 数学 2021-08-26 Yoshikazu Giga , Hiroyoshi Mitake , Shoichi Sato

In this paper, we study the initial value problem for infinite dimensional fractional non-autonomous reaction-diffusion equations. Applying general time-splitting methods, we prove the existence of solutions globally defined in time using…

偏微分方程分析 · 数学 2018-08-24 Agustín Besteiro , Diego Rial
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