Research Article Marichev-Saigo-Maeda Fractional Integration Operators Involving Generalized Bessel Functions Saiful R. Mondal 1 and K. S. Nisar 2 1 Department of Mathematics & Statistics, College of Science, King Faisal University, P.O. Box 400, Hofuf, Al-Ahsa 31982, Saudi Arabia 2 Department of Mathematics, College of Arts and Science, Salman bin Abdulaziz University, P.O. Box 54, Wadi Al-Dawaser 11991, Saudi Arabia Correspondence should be addressed to Saiful R. Mondal; saiful786@gmail.com Received 12 February 2014; Accepted 4 March 2014; Published 8 April 2014 Academic Editor: Santanu Saha Ray Copyright © 2014 S. R. Mondal and K. S. Nisar. Tis is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Two integral operators involving Appell’s functions, or Horn’s function in the kernel are considered. Composition of such functions with generalized Bessel functions of the frst kind is expressed in terms of generalized Wright function and generalized hypergeometric series. Many special cases, including cosine and sine function, are also discussed. 1. Introduction Let , , , , ∈ C and >0; then the generalized fractional integral operators involving Appell’s functions or Horn’s function are defned as follows: ( , ,, , 0,+ )() = − Γ() 0 (−) −1 − 3 ×(, ,, ;;1− ,1− )(), (1) ( , ,, , 0,− )() = − Γ() (−) −1 − 3 ×(, ,, ;;1− ,1− )(), (2) with Re() > 0. Te generalized fractional integral operators of the types (1) and (2) have been introduced by Marichev [1] and later extended and studied by Saigo and Maeda [2]. Tese operators together are known as the Marichev-Saigo-Maeda operator. Te fractional integral operator has many interesting applications in various subfelds in applicable mathematical analysis; for example, [3], it has applications related to a certain class of complex analytic functions. Te results given in [46] can be referred to for some basic results on fractional calculus. Te purpose of this work is to investigate compositions of integral transforms (1) and (2) with the generalized Bessel function of the frst kind W ,, defned for complex ∈ C and ,,∈ C by W ,, () = =0 (−1) Γ(+)! ( 2 ) 2+ , (3) where :=+(+1)/2. More details related to the function W ,, and its particular cases can be found in [7, 8] and references therein. It is worth mentioning that W ,1,1 = is Bessel function of order and W ,1,−1 = is modifed Bessel function of order . Also, W ,2,1 = 2 /√ is spherical Bessel function of order and W ,2,−1 = 2 /√ is modifed spherical Bessel function of order . Tus the study of the integral transform of W ,, will give far reaching results than the result in [9, 10]. Te present paper is organized as follows. In Sections 2 and 3, composition of integral transforms (1) and (2) with Hindawi Publishing Corporation Mathematical Problems in Engineering Volume 2014, Article ID 274093, 11 pages http://dx.doi.org/10.1155/2014/274093