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Existence and uniqueness of a weak solution to a non-autonomous time-fractional diffusion equation (of distributed order)
Applied Mathematics Letters ( IF 2.9 ) Pub Date : 2020-06-02 , DOI: 10.1016/j.aml.2020.106540
Karel Van Bockstal

In this contribution, we investigate an initial–boundary value problem for a fractional diffusion equation of distributed order where the coefficients of the elliptic operator are dependent on spatial and time variables. We consider a homogeneous Dirichlet boundary condition. Using a classical variational approach, we establish the existence of a unique weak solution to the problem in C[0,T],H01(Ω)L(0,T),H01(Ω) if the initial data belongs to H01(Ω). The same result is also valid for the fractional diffusion equation with Caputo derivative.



中文翻译:

一类非自治时间分数阶扩散方程弱解的存在性和唯一性

在这项贡献中,我们研究了分布阶数的分数阶扩散方程的初边值问题,其中椭圆算子的系数取决于空间和时间变量。我们考虑齐次Dirichlet边界条件。使用经典的变分方法,我们建立了一个唯一弱解的存在性C[0Ť]H01个Ω大号0ŤH01个Ω 如果初始数据属于 H01个Ω。对于具有Caputo导数的分数扩散方程,同样的结果也是有效的。

更新日期:2020-06-02
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