On Time-Fractional Diffusion Equations with Space-Dependent Variable Order

On Time-Fractional Diffusion Equations with Space-Dependent Variable Order
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DOI:
10.1007/s00023-018-0734-y
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发表时间:
2018-10
期刊:
Annales Henri Poincaré
影响因子:
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通讯作者:
Yavar Kian;É. Soccorsi;Masahiro Yamamoto
Yavar Kian;É. Soccorsi;Masahiro Yamamoto
中科院分区:
其他
文献类型:
--
作者:
Yavar Kian;É. Soccorsi;Masahiro Yamamoto

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本文讨论与空间相关的反常扩散过程相关的数学问题。也就是说,我们研究具有空间相关变量阶数的时间分数导数的扩散方程。我们建立了变阶时间分数柯西问题承认唯一的弱解,并证明了空间相关的变阶系数是由部分初始边界图的适当时间序列的知识唯一确定的。
This paper deals with mathematical problems related to space-dependent anomalous diffusion processes. Namely, we investigate diffusion equations with time-fractional derivatives of space-dependent variable order. We establish that variable-order time-fractional Cauchy problems admit a unique weak solution and prove that the space-dependent variable-order coefficient is uniquely determined by the knowledge of a suitable time sequence of partial initial-boundary maps.