A Study of an Integral Equation Involving the S-Function as its Kernel with Application

Harmendra Kumar Mandia

  Open Access OPEN ACCESS  Peer Reviewed PEER-REVIEWED

A Study of an Integral Equation Involving the S-Function as its Kernel with Application

Harmendra Kumar Mandia

Department of Mathematics,Seth Moti Lal (P.G.) college, Jhunjhunu, Rajasthan, India

Abstract

The aim of present paper is to study of an integral equation involving the - function as its kernel. We also define Some Special cases of our main result. At the end, application of our preliminary result by connecting it with Riemann-Liouville type fractional integral operator is given.

Cite this article:

  • Mandia, Harmendra Kumar. "A Study of an Integral Equation Involving the S-Function as its Kernel with Application." Applied Mathematics and Physics 1.2 (2013): 27-30.
  • Mandia, H. K. (2013). A Study of an Integral Equation Involving the S-Function as its Kernel with Application. Applied Mathematics and Physics, 1(2), 27-30.
  • Mandia, Harmendra Kumar. "A Study of an Integral Equation Involving the S-Function as its Kernel with Application." Applied Mathematics and Physics 1, no. 2 (2013): 27-30.

Import into BibTeX Import into EndNote Import into RefMan Import into RefWorks

1. Introduction

The-function occurring in the paper will be defined and represented as follows:

(1.1)

Where

(1.2)

Which contains fractional powers of the gamma functions. Here, and throughout the paper and are complex parameters, (not all zero simultaneously) and exponents and can take on non integer values.

The following sufficient condition for the absolute convergence of the defining integral for the -function given by equation (1.1) have been given by (Buschman and Srivastava [1]).

(1.3)
(1.4)

The behavior of the -function for small values of follows easily from a result recently given by (Rathie [4], eq.(6.9)).

We have

(1.5)

If we take in (1.1), the function reduces to the Fox’s H-function [3].

We shall use the following notation:

Srivastava and Daoust [6] have generalized the Kampe de Feriet function as -function which is defined and represented as[8]:

(1.6)

The Beta function is defined as:

(1.7)

2. Preliminary Result

(2.1)

Where,

(2.2)

Provided

(i)

(ii)

(iii)

Where is given by (1.3).

Proof: Express the - function on the left hand side of (2.1) as a series uses (1.6) and express the -function as a contour integral using (1.1) and then change the order of integration and summation and evaluate the inner integral using (1.7) to get the required result. The change of order of integration and summation is justified, when the given conditions are satisfied because of the absolute convergence of the integrals involved.

3. Main Result

The Integral Equation

(i), has the solution

(ii)

(3.1)

Where

and is given by (2.2), provided:

(i)

(ii)

(iii)

Where is given by (1.3).

(iv) and

(v)is continuous in .

Proof: Substituting for from (ii) of (3.1) and changing the order of integration the left hand side of (i) of (3.1) becomes

(3.2)

On putting , the inner integral in (3.2) becomes:

Which on using (2.1), reduces to .

Now (3.2) becomes:

4. Special Cases:

When , the -function reduces to the Fox’s -function and (3.1) reduces to the result:

The integral equation

(i), has the solution

(ii)

(4.1)

Where

and is given by (2.2), provided:

(i)

(ii)

(iii)

Where

(iv) and

(v)is continuous in .

When , the -function reduces to the Meijer’s-function and (4.1) reduces to the result:

The integral equation

(i), has the solution

(ii)

(4.2)

Where

and is given by (2.2), provided:

(i)

(ii)

(iii)

Where

(iv) and

(v)is continuous in .

5. Application

We shall define the Riemann-Liouville fractional derivative of function of order (or alternatively, order fractional integral) [2, 7] by

(5.1)

Where is a positive integer and the integral exists. For simplicity the special case of the fractional derivative operator, when will be written as . Thus we have

(5.2)

The preliminary result (2.1) can be rewritten as the following fractional integral formula:

(5.3)

Where and all the conditions of validity mentioned with (2.1) are satisfied.

6. Conclusion

Thus, our obtained result the fractional integral formula given by (5.3) is also quite general in nature and can easily yield Riemann-Liouville fractional integrals of a large number of simpler functions and polynomials merely by specializing the parameters occurring in it which may find applications in electromagnetic theory and probability.

References

[1]  Buschman, R.G. and Srivastava , H.M., The function associated with a certain class of Feynman integrals, J.Phys.A:Math. Gen. 23, (1990), 4707-4710.
In article      CrossRef
 
[2]  Erdelyi,A.et.al. ,Higher Traanscendental Functions, Vol.1, Mc.Graw-Hill , New York, (1953).
In article      
 
[3]  Fox.C., The G.and H-function as symmetrical Fourier kernels, Trans. Amer. Math.Soc. 98,(1961), 395-429.
In article      
 
[4]  Rathie,A.K. ,A new generalization of generalized hypergeometric functions Le Mathematiche Fasc.II, 52,(1997),297-310.
In article      
 
[5]  Singh, R.P., Generalized Struve’s function and its recurrence equations, Vijnana, Parishad Anusandhan Patrika, 28(3), 287-292.
In article      
 
[6]  Srivastava, H.M. and Daoust Martha, C., Certain generalizatized Neumann expansions associated with the Kampe-de-Feriet function, Indag. Math.31, (1969), 449-457.
In article      
 
[7]  Srivastava,H.M.,Gupta, K.C. and Goyal,S.P.(1982), The H-Functions of One and Two Varibale withApplications,South Asian Publishers, New Delhi and Madras, (1982).
In article      
 
[8]  Vasudevan, T.M. and Shahul Hameed, K.P., An Integral equation involving the generalized Struve’s function as its kernel, The Mathematics Education, vol. 42(2), (2008), 118-122.
In article      
 
  • CiteULikeCiteULike
  • Digg ThisDigg
  • MendeleyMendeley
  • RedditReddit
  • Google+Google+
  • StumbleUponStumbleUpon
  • Add to DeliciousDelicious
  • FacebookFacebook
  • TwitterTwitter
  • LinkedInLinkedIn