Keywords: Dirichlet average, Generalized Miller-Ross Function, fractional derivative and Fractional calculus operators
Turkish Journal of Analysis and Number Theory, 2015 3 (1),
pp 30-32.
DOI: 10.12691/tjant-3-1-7
Received December 09, 2014; Revised January 14, 2015; Accepted March 01, 2015
Copyright © 2015 Science and Education Publishing. All Rights Reserved.
1. Introduction
Carlson [1-5][1] has defined Dirichlet average of functions which represents certain type of integral average with respect to Dirichlet measure. He showed that various important special functions can be derived as Dirichlet averages for the ordinary simple functions like
etc. He has also pointed out [3] that the hidden symmetry of all special functions which provided their various transformations can be obtained by averaging
etc. Thus he established a unique process towards the unification of special functions by averaging a limited number of ordinary functions. Almost all known special functions and their well known properties have been derived by this process.
Recently, Gupta and Agarwal [9, 10] found that averaging process is not altogether new but directly connected with the old theory of fractional derivative. Carlson overlooked this connection whereas he has applied fractional derivative in so many cases during his entire work. Deora and Banerji [6] have found the double Dirichlet average of ex by using fractional derivatives and they have also found the Triple Dirichlet Average of xt by using fractional derivatives [7].
In the present paper the Dirichlet average of Generalized Miller-Ross Function has been obtained.
2. Definitions
Some definitions which are necessary in the preparation of this paper.
2.1. Standard Simplex in
:Denote the standard simplex in
,
by [[1], p. 62].
2.2. Dirichlet MeasureLet
and let
be the standard simplex in
The complex measure
is defined by E [1].
known as Dirichlet measure.
Here
open right half plane and
k is the
Cartesian power of
.
2.3. Dirichlet Average[[1], p. 75]Let
be the convex set in
, let
and let
be a convex combination of
. Let
be a measureable function on
and let
be a Dirichlet measure on the standard simplex
in
.Define
 | (2.3) |
F is the Dirichlet measure of
with variables
and parameters
.
Here
If
, define 
2.4. Generalized Miller-Ross FunctionThis function is introduced by the author as follows:
 | (2.4) |
Here,
upper parameters
and
lower parameters
and
are pochammer symbols. The function (3.6.1.1) is defined when none of the denominator parameters
is a negative integer or zero. If any parameter
is negative then the function (2.4) terminates into a polynomial in x. By using ratio test, it is evident that function (2.4) is convergent for all x, when
, it is convergent for
when
, divergent when
. In some cases the series is convergent for
. Let us consider take,
when
, the series is absolutely convergent for
if
, convergent for
if
and divergent for
if 1
which is a special case of Wright function.
2.5. Fractional Derivative [[8], p. 181]The theory of fractional derivative with respect to an arbitrary function has been used by Erdelyi [8]. The general definition for the fractional derivative of order
found in the literature on the “Riemann-Liouville integral” is
 | (2.5) |
where
and
is the form of
, where
is analytic at 
3. Equivalence
In this section we shall prove the equivalence of single Dirichlet average of Generalized Miller-Ross Function
with the fractional derivative i.e.
 | (3.1) |
Proof:
Putting
we have
On changing the order of integration and summation, we have
Or
Hence by the definition of fractional derivative, we get
This completes the analysis.
4. Particular Cases
If
and no upper and lower parameter in (3.1) then
 | (4.1) |
This confluent hyper geometric function [11]
Then
(ii) If
and from (4.1), then
where
be the generalization of Mittag-Leffler function [12].
5. Applications
Dirichlet average is average given by Dirichlet. The Dirichlet average of elementary function like power function, exponential function etc is given by many notable mathematician, Actually, We have convert the elementary function into the summation form after that taking Dirichlet average of those function, using fractional integral and get new results. These results will be used in future by mathematician and scientist. Thus we have find a connection Dirichlet average of a function and fractional integral.
Acknowledgements
The authors express their thanks to the anonymous learned referee(s) and the editor for their constructive comments, valuable suggestions, which resulted in the subsequent improvement of this research article. The authors are grateful to all editorial board members and reviewers of esteemed journal i.e. Turkish Journal of Applied Analysis and Number Theory (TJANT). All the authors conceived of the study and participated in its design and coordination. All authors drafted the manuscript, participated in the sequence alignment. All the authors read and approved the final version of manuscript. The authors declare that there is no conflict of interests regarding the publication of this research article.
References
[1] | Carlson, B.C., Special Function of Applied Mathematics, Academic Press, New York, 1977. |
| In article | |
|
[2] | Carlson, B.C., Appell’s function F4 as a double average, SIAM J.Math. Anal. 6 (1975), 960-965. |
| In article | CrossRef |
|
[3] | Carlson, B.C., Hidden symmetries of special functions, SIAM Rev. 12 (1970), 332-345. |
| In article | CrossRef |
|
[4] | Carlson, B.C., Dirichlet averages of x t log x, SIAM J.Math. Anal. 18(2) (1987), 550-565. |
| In article | CrossRef |
|
[5] | Carlson, B.C., A connection between elementary functions and higher transcendental functions, SIAM J. Appl. Math. 17 (1969), 116-140. |
| In article | CrossRef |
|
[6] | Deora, Y. and Banerji, P.K., Double Dirichlet average of ex using fractional derivatives, J. Fractional Calculus 3 (1993), 81-86. |
| In article | |
|
[7] | Deora, Y. and Banerji, P.K., Double Dirichlet average and fractional derivatives, Rev.Tec.Ing.Univ. Zulia 16 (2) (1993), 157-161. |
| In article | |
|
[8] | Erdelyi, A., Magnus, W., Oberhettinger, F. and Tricomi , F.G., Tables of Integral Transforms, Vol. 2 McGraw-Hill, New York, 1954. |
| In article | PubMed |
|
[9] | Gupta,S.C. and Agrawal, B.M., Dirichlet average and fractional derivatives, J. Indian Acad.Math. 12(1) (1990), 103-115. |
| In article | |
|
[10] | Gupta,S.C. and Agrawal, Double Dirichlet average of ex using fractional derivatives, Ganita Sandesh 5 (1) (1991),47-52. |
| In article | |
|
[11] | Mathai, A.M. and Saxena,R.K., The H-Function with Applications in Stastistics and other Disciplines, Wiley Halsted, New York, 1978. |
| In article | |
|
[12] | Saxena,R.K., Mathai,A.M and Haubold, H.J., Unified fractional kinetic equation and a fractional diffusion equation, J. Astrophysics and Space Science 209 (2004) , 299-310. |
| In article | CrossRef |
|
[13] | Sharma, Manoj and Jain, Renu, Dirichlet Average and Fractional Derivatie, J. Indian Acad. Math. Vol. 12, No. 1(1990). |
| In article | |
|