Explicit solutions for linear variable-coefficient fractional differential equations with respect to functions

2020/06/27 by Joel E. Restrepo, Michael Ruzhansky, Restrepo, Joel E. +3
Mathematics · #26A33 #34A08 #Classical Analysis and ODEs (math.CA) #FOS: Mathematics #math.CA #msc:26A33 #msc:34A08

paper · pdf · doi:10.48550/arxiv.2006.15356

30 pages, the title is changed, typos are corrected, to appear in Appl. Math. Comput

arxiv created 2021/03/12 · arxiv updated 2021/03/15

Abstract

Explicit solutions of differential equations of complex fractional orders with respect to functions and with continuous variable coefficients are established. The representations of solutions are given in terms of some convergent infinite series of fractional integro-differential operators, which can be widely and efficiently used for analytic and computational purposes. In the case of constant coefficients, the solution can be expressed in terms of the multivariate Mittag-Leffler functions. In particular, the obtained result extends the Luchko-Gorenflo representation formula to a general class of linear fractional differential equations with variable coefficients, to complex fractional derivatives, and to fractional derivatives with respect to a given function.

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