An alternative method for solving a certain class of fractional kinetic equations

Abstract

An alternative method for solving the fractional kinetic equations solved earlier by Haubold and Mathai (Astrophysics and Space Science 273:53–63, 2000) and Saxena et al. (Astrophysics and Space Science 282:281–287, 2002; Physica A 344:653–664, 2004a; Astrophysics and Space Science 290:299–310, 2004b) is recently given by Saxena and Kalla (Applied Mathematics and Computation 199:504–511, 2007). This method can also be applied in solving more general fractional kinetic equations than the ones solved by the aforesaid authors. In view of the usefulness and importance of the kinetic equation in certain physical problems governing reaction-diffusion in complex systems and anomalous diffusion, the authors present an alternative simple method for deriving the solution of the generalized forms of the fractional kinetic equations solved by the aforesaid authors and Nonnenmacher and Metzler (Fractals 3:557–566, 1995). The method depends on the use of the Riemann-Liouville fractional calculus operators. It has been shown by the application of Riemann-Liouville fractional integral operator and its interesting properties, that the solution of the given fractional kinetic equation can be obtained in a straight-forward manner. This method does not make use of the Laplace transform.