Abstract
We study analytically and numerically the fractional Langevin equation driven by the fractional Brownian motion. The fractional derivative is in Caputo’s sense and the fractional order in this paper is α = 2 − 2H, where H ∈ (\(\tfrac{1} {2} \), 1) is the Hurst parameter (or, index). We give numerical schemes for the fractional Langevin equation with or without an external force. From the figures we can find that the mean square displacement of the fractional Langevin equation has the property of the anomalous diffusion. When the fractional order tends to an integer, the diffusion reduces to the normal diffusion.
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Editorial Note: For the presentation of this paper, the first author Peng Guo was awarded the prize for “Best Oral Presentation” at the 2012 Symposium on Fractional Differentiation and Its Applications (FDA’ 2012), Hohai University, Nanjing.
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Guo, P., Zeng, C., Li, C. et al. Numerics for the fractional Langevin equation driven by the fractional Brownian motion. fcaa 16, 123–141 (2013). https://doi.org/10.2478/s13540-013-0009-8
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DOI: https://doi.org/10.2478/s13540-013-0009-8