Artigo Acesso aberto Revisado por pares

Analytical solutions for the fractional diffusion-advection equation describing super-diffusion

2016; De Gruyter Open; Volume: 14; Issue: 1 Linguagem: Inglês

10.1515/phys-2016-0074

ISSN

2391-5471

Autores

J.F. Gómez‐Aguilar, Enrique Escalante, C. Calderón-Ramón, Luis Morales, Mário H. Gonzalez, Rodrigo Laguna,

Tópico(s)

Nonlinear Differential Equations Analysis

Resumo

Abstract This paper presents the alternative construction of the diffusion-advection equation in the range (1; 2). The fractional derivative of the Liouville-Caputo type is applied. Analytical solutions are obtained in terms of Mittag-Leffler functions. In the range (1; 2) the concentration exhibits the superdiffusion phenomena and when the order of the derivative is equal to 2 ballistic diffusion can be observed, these behaviors occur in many physical systems such as semiconductors, quantum optics, or turbulent diffusion. This mathematical representation can be applied in the description of anomalous complex processes.

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