Geodesic
An implicit numerical method for the solution of the fractional advection-diffusion equation with delay
Trudy Instituta matematiki i mehaniki, Trudy Instituta Matematiki i Mekhaniki UrO RAN, Tome 22 (2016) no. 2, pp. 218-226 Cet article a éte moissonné depuis la source Math-Net.Ru

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A technique for constructing difference schemes for time- and space-fractional partial differential equations with time delay is considered. Shifted Grünwald–Letnikov formulas and the L1-algorithm are used for the approximation of space-fractional and time-fractional derivatives, respectively. We also use piecewise constant interpolation and extrapolation by extending the model prehistory in time. The algorithm is an analog of the pure implicit numerical method and reduces to the solution of linear algebraic systems at each time step. The order of convergence is obtained. Numerical experiments are carried out to support the obtained theoretical results.
Keywords: fractional differential equation, functional delay, grid schemes
Mots-clés : interpolation, extrapolation, convergence order. 
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V. G. Pimenov; A. S. Hendy. An implicit numerical method for the solution of the fractional advection-diffusion equation with delay. Trudy Instituta matematiki i mehaniki, Trudy Instituta Matematiki i Mekhaniki UrO RAN, Tome 22 (2016) no. 2, pp. 218-226. http://geodesic.mathdoc.fr/item/TIMM_2016_22_2_a23/

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