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Generalized fractional kinetic equations involving generalized Struve function of the first kind
⁎Corresponding author. sunil_a_purohit@yahoo.com (S.D. Purohit),
-
Received: ,
Accepted: ,
This article was originally published by Elsevier and was migrated to Scientific Scholar after the change of Publisher.
Peer review under responsibility of King Saud University.
Abstract
In recent paper Dinesh Kumar et al. developed a generalized fractional kinetic equation involving generalized Bessel function of first kind. The object of this paper is to derive the solution of the fractional kinetic equation involving generalized Struve function of the first kind. The results obtained in terms of generalized Struve function of first kind are rather general in nature and can easily construct various known and new fractional kinetic equations.
Keywords
Fractional kinetic equations
Fractional calculus
Special functions
Laplace transforms
Generalized Struve function of the first kind
Introduction
The Struve function
and
are defined as the sum of the following infinite series
The purpose of this work is to investigate the generalized form of the fractional kinetic equation involving generalized Struve function of the first kind
defined for complex
and
(
) by
Details related to the function
and its particular cases can be seen in Baricz (2010, 2008), Mondal and Nisar (2014), Mondal and Swaminathan (2012) and the references therein. In this paper we consider the following transformation
The importance of fractional differential equations in the field of applied science has gained more attention not only in mathematics but also in physics, dynamical systems, control systems and engineering, to create the mathematical model of many physical phenomena. Especially, the kinetic equations describe the continuity of motion of substance and are the basic equations of mathematical physics and natural science. The extension and generalization of fractional kinetic equations involving many fractional operators were found (Zaslavsky, 1994; Saichev and Zaslavsky, 1997; Haubold and Mathai, 2000; Saxena et al., 2002, 2004, 2006, 2008; Chaurasia and Pandey, 2008; Gupta and Sharma, 2011; Chouhan and Sarswat, 2012; Chouhan et al., 2013; Gupta and Parihar, 2014; Kumar et al., 2015; Choi and Kumar, 2015). In view of the effectiveness and a great importance of the kinetic equation in certain astrophysical problems the authors develop a further generalized form of the fractional kinetic equation involving generalized Struve function of the first kind.
The fractional differential equation between rate of change of reaction was established by Haubold and Mathai (2000), the destruction rate and the production rate are calculated as follows:
The special case of (6), for spatial fluctuations or inhomogeneities in
the quantity are neglected, that is the equation
The fractional generalization of the standard kinetic Eq. (8) is given by Haubold and Mathai (2000) as follows:
Further, Saxena and Kalla (2008) considered the following fractional kinetic equation:
By applying the Laplace transform to (11) (see Kumar et al., 2015),
The object of this paper is to derive the solution of the fractional kinetic equation involving generalized Struve function of the first kind. The results obtained in terms of generalized Struve function of the first kind are rather general in nature and can easily construct various known and new fractional kinetic equations.
Solution of generalized fractional kinetic equations
In this section, we will investigate the solution of the generalized fractional kinetic equations by considering the generalized Struve function of first kind. The results are as follows.
If
and
, then the solution of the equation
The Laplace transform of the Riemann–Liouville fractional integral operator is given by Erdélyi et al. (1954), Srivastava and Saxena (2001)
Taking Laplace inverse of (17), and by using we have □
If
and
, then the solution of the equation
The Laplace transform of the Riemann–Liouville fractional integral operator is given by Erdélyi et al. (1954)
Taking Laplace inverse of (22), and by using we have
This completes the proof of Theorem 2. □
If
and
, then the solution of the equation
Conclusion
In this work we give a new fractional generalization of the standard kinetic equation and derived solutions for the same. From the close relationship of the generalized Struve function of the first kind with many special functions, we can easily construct various known and new fractional kinetic equations.
Acknowledgements
The authors would like to express their appreciation to the referees for their valuable suggestions which helped to better presentation of this paper. The author K.S. Nisar would like to thank Deanship of Scientific research, Prince Sattam bin Abdulaziz University, Saudi Arabia for financial support under the project 2014/01/2152.
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