Mittag-Leffler functions to pathway model to Tsallis statistics

Abstract

In reaction rate theory, in input–output type models, and in reaction–diffusion problems, when the total derivatives are replaced by fractional derivatives the solutions are obtained in terms of Mittag-Leffler functions and their generalizations. When fractional calculus enters into the picture, the solutions of these problems, usually available in terms of hypergeometric functions, G and H-functions, switch to Mittag-Leffler functions and their generalizations into Wright functions. In this paper, connections are established among generalized Mittag-Leffler functions, pathway model, Tsallis statistics, superstatistics and power law, and among the corresponding entropic measures.