Keywords: Bernoulli polynomials and numbers, Apostol-Bernoulli polynomials, Apostol-Euler polynomials, Generalized Apostol-Bernoulli polynomials
Turkish Journal of Analysis and Number Theory, 2013 1 (1),
pp 54-58.
DOI: 10.12691/tjant-1-1-11
Received October 15, 2013; Revised November 25, 2013; Accepted December 03, 2013
Copyright © 2013 Science and Education Publishing. All Rights Reserved.
1. Introduction, Definitions
Bernoulli polynomials play an important role in various expansions and approximation formulas which are useful both in analytic theory of numbers and the classical and the numerical analysis. These polynomials can be defined by various methods depending on the applications. There are six approaches to the theory of Bernoulli polynomials. We prefer here the definition by generating functions given by Euler [4].
The classical Bernoulli polynomials and the classical Euler polynomials are defined respectively as
 | (1.1) |
 | (1.2) |
The corresponding Bernoulli numbers
and Euler numbers
are given by
From (1.1) and (1.2), we easily derive that
 | (1.3) |
 | (1.4) |
(for details, see [11, J. of App. Math., 153-163, 2003.">12, App. Math. Letter, 17, 375-380, 2004.">13]).
The generalized Apostol-Bernoulli polynomials
order
and the generalized Apostol-Euler polynomials
order
are defined respectively by the following generating functions
 | (1.5) |
 | (1.6) |
Recently, Srivastava et. al. in ([App. Math. Letter, 17, 375-380, 2004.">13, Russian J. of Math. Phys., 17, 251-261, 2010.">14, Taiwanese J. of Math., 15, 283-305, 2011.">15]) have investigated some new classes of Apostol-Bernoulli, Apostol-Euler polynomials with parameters a, b, and c. They gave some recurrence relations and proved some theorems.
For
one can obtain the classical polynomials (1.1) and (1.2). Other generalizations can be developed as well.
Definition 1. [Natalini [12] and S. Chen et al. [3]] The generalized Bernoulli polynomials
are defined, in a suitable neigbourhood of
by means of the generating functions
 | (1.7) |
From (1.7) for
we obtain the generating function
of classical Bernoulli polynomials
From (1.7) for
we obtain the generalized Bernoulli numbers 
Definition 2. [Kurt [9]] For
the generalized Bernoulli polynomials
of order
are defined by means of the generating function
 | (1.8) |
in suitable neigbourhood of 
The case
was first introduced by Natalini and Bernardini [6]. For
we obtain classical Bernoulli polynomials.
By the same motivation, the generalized Euler polynomials
of order
and generalized Euler numbers
of order
were defined by the author [10]
 | (1.9) |
and
 | (1.10) |
From (1.9) and (1.10) and for
we obtain classical Euler polynomials and classical Euler numbers respectively:
By the same motivation, the generalized Genocchi polynomials
of order
and generalized Genocchi numbers
of order
can be defined as
 | (1.11) |
and
 | (1.12) |
2. New Classes of Generalized Apostol-Euler Polynomials and Apostol-Bernoulli Polynomials
The following definitions provide a natural generalization of the Apostol-Euler polynomials
of order
and the Apostol-Bernoulli polynomials
of order
where 
Definition 3. We de.ne the generalized Bernoulli polynomials
of order
and the generalized Euler polynomials
of order
respectively by
 | (2.1) |
 | (2.2) |
and
 | (2.3) |
For
(2.1) reduces to (1.7).
For
(2.1), (2.2) and (2.3) reduce to classical Bernoulli polynomial, classical Euler polynomial and classical Genocchi polynomial.
From (2.1), (2.2) and (2.3), we obtain
and
Theorem 1. Let
Then the generalized Apostol-Bernoulli polynomials
and the generalized Apostol-Euler polynomials
satisfy the following relations
 | (2.4) |
 | (2.5) |
and
 | (2.6) |
respectively.
Proof. Considering the generating function (2.1) and comparing the coefficients of
in the both sides of the above equation, we arrive at (2.4). Proof of (2.5) and (2.6) are similar.
Theorem 2. The generalized Apostol-Bernoulli polynomials
satisfy the following recurrence relation:
 | (2.7) |
Proof. Considering the expression
and using generating function (2.1), the proof follows.
Corollary 1. The generalized Apostol-Euler polynomials
satisfy the following recurrence relation:
 | (2.8) |
Theorem 3. There is the following relation between the generalized Apostol-Bernoulli polynomials
for
and the generalized Apostol-Euler polynomials
for 
 | (2.9) |
Proof. We take
and
instead of
and
respectively. We write as:
Comparing the coefficients of
, we obtain (2.9).
Theorem 4. The generalized Apostol-Bernoulli polynomials
satisfy the following recurrence relation:
 | (2.10) |
Proof. From (2.1) for
we write as
 | (2.11) |
 | (2.12) |
We put (2.12) in the right hand side of (2.11). Then
If we make necessary operations in the last equation and comparing the coefficients of
we arrive (2.10).
Theorem 5. The following relations hold true:
 | (2.13) |
and
 | (2.14) |
Proof. From (2.1) for 
Comparing the coefficients of
we obtain (2.13).
For the proof of (2.14), we write
Comparing the coefficients of
we arrived to result.
Corollary 2. The new generalized Bernoulli polynomials
for
and the new generalized Euler polynomials
for
satisfy the following Raabe relations:
 | (2.15) |
and
 | (2.16) |
Proof. We put
in (2.1),
From the last equality, we have (2.15).
Second equation of this corollary can be obtained similarly, so we omit it.
Acknowledgements
This paper was supported by the Scientific Research Project Administration of Akdeniz University.
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