On the generalized fractional integrals of the generalized Mittag-Leffler function

Abstract In this paper, we employ the generalized fractional calculus operators on the generalized Mittag-Leffler function. Some results associated with generalized Wright function are obtained. Recent results of Chaurasia and Pandey are obtained as special cases. 2000 Mathematics Subject Classification 33C45, 47G20, 26A33


Introduction
In 1903, the Swedish mathematician Mittag-Leffler (1903) introduced the function where z is a complex variable and ν ≥ 0. The Mittag-Leffler function is a direct generalization of exponential function to which it reduces for ν = 1. For 0 < ν < 1 it interpolates between the pure exponential and hypergeometric function 1 1−z . Its importance is realized during the last two decades due to its involvement in the problems of physics, chemistry, biology, engineering and applied sciences. Mittag-Leffler function naturally occurs as the solution of fractional order differential or fractional order integral equation. The generalization of E ν (z) was studied by Wiman (1905) and he defined the function as , (ν > 0, ρ > 0, z ∈ C), (1.2) which is known as Wiman function. In 1971, Prabhakar (1971) For various properties and other details of (1.3), see (Kilbas et al. 2004).
The generalized Wright function p q defined for z ∈ C, a i , b j ∈ C and α i , β j ∈ R(α i , β j = 0; i = 1, 2, ..., p; j = 1, 2, ..., q) is given by the the series where (z) is the Euler gamma function ( (Erdlyi et al. 1953), Sec. 1.1) and the function (1.4) was introduced by Wright (1935) and is known as generalized Wright function. Conditions for the existence of the generalized Wright function (1.4) together with its representation in terms of Mellin-Barnes integral and in terms of H-function were established in (Wright 1934). Some particular cases of generalized Wright function (1.4) were established in ( (Wright 1934), Sec. 6). Wright (1940a,c) investigated, by "steepest descent" http://www.springerplus.com/content/3/1/198 method, the asymptotic expansions of the function φ (α, β; z) for large values of z in the cases α > 0 and −1 < α < 0, respectively. In Wright (1940c) indicated the application of the obtained results to the asymptotic theory of partitions. In (Wright 1935(Wright , 1940a Wright extended the last result to the generalized Wright function (1.4) and proved several theorems on the asymptotic expansion of generalized Wright function p q (z) for all values of the argument z under the condition, (1.5) For a detailed study of various properties, generalizations and applications of Wright function and generalized Wright function, we refer to papers of Wright (1934Wright ( , 1935Wright ( , 1940a and Kilbas (2002)

Fractional calculus operators and generalized fractional calculus operators
The left and right-sided Rimann-Liouville fractional calculus operators are defined by Samko et al. (1993), where [ α] means the maximal integer not exceeding α and {α} is the fractional part of α. An interesting and useful generalizations of the Riemann-Liouville and Erdlyi-Kober fractional integral operators has been introduced by Saigo (1978) in terms of Gauss hypergeometric function as given below. Let α, β, γ ∈ C and x ∈ R + , then the generalized fractional integration and fractional differentiation operators associated with Gauss hypergeometric function are defined as follows: Operators (2.5)-(2.8) reduce to that in (2.1)-(2.4) as follows: (2.12) Here, we also need the basic result given below (see Rainville (1960) (2.13)

Left-sided generalized fractional integration of generalized Mittag-Leffler function
In this section we consider the left-sided generalized fractional integration formula of the generalized Mittag-Leffler function.

Right-sided generalized fractional integration of generalized Mittag-Leffler function
In this section we consider the left-sided generalized fractional integration formula of the generalized Mittag-Leffler function.

Left-sided generalized fractional differentiation of generalized Mittag-Leffler function
In this section we consider the left-sided generalized fractional differentiation formula of the generalized Mittag-Leffler function.