نتایج جستجو برای: time fractional inverse diffusion problem

تعداد نتایج: 2776381  

Journal: :Computers & Mathematics with Applications 2012
Liyan Wang Jijun Liu

Journal: : 2022

Работа посвящена построению параллельных алгоритмов решения прямой начально-краевой задачи и обратной о восстановлении правой части для уравнения диффузии с дробной производной по времени. При использовании дополнительной информации решении в некоторой внутренней точке обратная задача сводится к задаче вспомогательного уравнения. После применения конечно-разностных схем сводятся решению систем ...

2007
Rudolf GORENFLO

A physical-mathematical approach to anomalous diffusion may be based on generalized diffusion equations (containing derivatives of fractional order in space or/and time) and related random walk models. By the space-time fractional diffusion equation we mean an evolution equation obtained from the standard linear diffusion equation by replacing the second-order space derivative with a Riesz-Fell...

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2006
B I Henry T A M Langlands S L Wearne

We have revisited the problem of anomalously diffusing species, modeled at the mesoscopic level using continuous time random walks, to include linear reaction dynamics. If a constant proportion of walkers are added or removed instantaneously at the start of each step then the long time asymptotic limit yields a fractional reaction-diffusion equation with a fractional order temporal derivative o...

ژورنال: پژوهش های ریاضی 2023

In this paper, a time-fractional diffusion equation of distributed order including the Caputo-Prabhakar fractional derivative is studied. We use a numerical method based on the linear B-spline interpolation and finite difference method to study the solutions of these types of fractional equations. Finally, some numerical examples are presented for the performance and accuracy of the proposed nu...

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