Some recent advances in theory and simulation of fractional diffusion processes

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To offer an insight into the rapidly developing theory of fractional diffusion processes, we describe in some detail three topics of current interest: (i) the well-scaled passage to the limit from continuous time random walk under power law assumptions to space-time fractional diffusion, (ii) the asymptotic universality of the Mittag–Leffler waiting time law in time-fractional processes, (iii) our method of parametric subordination for generating particle trajectories.

论文关键词:26A33,45K05,47G30,60G18,60G50,60G51,60J60,Parametric subordination,Random walks,Anomalous diffusion,Fractional calculus,Renewal theory,Power laws,Lévy processes

论文评审过程:Received 31 May 2007, Revised 20 December 2007, Available online 8 April 2008.

论文官网地址:https://doi.org/10.1016/j.cam.2008.04.005