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On the relation between the fractional Brownian motion and the fractional derivatives

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The definition and simulation of fractional Brownian motion are considered from the point of view of a set of coherent fractional derivative definitions. To do it, two sets of fractional derivatives are considered: (a) the forward and backward and (b) the central derivatives, together with two representations: generalised difference and integral. It is shown that for these derivatives the corresponding autocorrelation functions have the same representations. The obtained results are used to define a fractional noise and, from it, the fractional Brownian motion. This is studied. The simulation problem is also considered.

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Physics Letters A, vol. 372; Issue 7

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Forward and backward fractional derivatives Generalised Cauchy derivative Liouville derivative Differintegration Central fractional derivatives Fractional stochastic process Fractional Brownian motion

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