Keywords: Daehee numbers, Hyper-geometric Daehee numbers and polynomials
Turkish Journal of Analysis and Number Theory, 2013 1 (1),
pp 59-62.
DOI: 10.12691/tjant-1-1-12
Received October 07, 2013; Revised November 20, 2013; Accepted December 04, 2013
Copyright © 2013 Science and Education Publishing. All Rights Reserved.
1. Introduction
As is known, the Daehee polynomials are defined by the generating function to be
 | (1.1) |
(see [5, 6, 7, 9, 10, 11, 12]).
In the special case,
are called the Daehee numbers.
Let
and
denote the rings of p-adic integers, the fields of p-adic numbers and the completion of algebraic closure of
The p-adic norm
is normalized by
Let
be the space of uniformly differentiable functions on
For
the p-adic invariant integral on
is defined by
 | (1.2) |
(see [7, 8]).
Let
be the translation of
with
Then, by (1.2), we get
 | (1.3) |
As is known, the Stirling number of the first kind is defined by
 | (1.4) |
and the Stirling number of the second kind is given by the generating function to be
 | (1.5) |
(see [2, 3, 4]).
For
the Bernoulli polynomials of order
are defined by the generating function to be
 | (1.6) |
(see [1, 2, 9]).
When
are called the Bernoulli numbers of order 
A hyper-geometric series
is a series for which
and the ratio of consecutive terms is a rational function of the summation index
i.e., one for which
with
and
polynomials. In this case,
is called a hyper-geometric term. The functions generated by hyper-geometric series are called generalized hyper-geometric functions. If the polynomials are completely factored, the ratio of successive terms can be written
 | (1.7) |
(see [13]),
where the factor of
in the denominator is present for historical reasons of notation, and the resulting generalized hyper-geometric function is written
 | (1.8) |
(see [13]).
If
and
the function becomes a traditional hyper-geometric function
Many sums can be written as generalized hyper-geometric functions by inspections of the ratios of consecutive terms in the generating hyper-geometric series.
We introduce the hyper-geometric Daehee numbers and polynomials. From our definition, we can derive some interesting properties related to the hyper-geometric Daehee numbers and polynomials.
2. The Hyper-Geometric Daehee Numbers and Polynomials
First, we consider the following integral representation associated with falling factorial sequences:
 | (2.1) |
By (2.1), we get
 | (2.2) |
(see [6]), where
with 
For
with
let us take
Then, from (1.3), we have
 | (2.3) |
By (1.1) and (2.3), we see that
 | (2.4) |
(see [6]).
Therefore, by (2.4), we obtain the following Lemma.
Lemma 1. For
we have
For
it is known that
 | (2.5) |
(see [4, 5, 6]).
Thus, by (2.5), we get
 | (2.6) |
where
are the Bernoulli polynomials of order 
In the special case,
are called the n-th Bernoulli numbers of order 
From (2.4), we note that
 | (2.7) |
(see [6]).
Thus, by (2.7), we get
 | (2.8) |
and, from (2.5), we have
 | (2.9) |
(see [6]).
Therefore, by (2.8) and (2.9), we obtain the following Lemma.
Lemma 2. For
we have
and
By Lemma 1, we easily see that
 | (2.10) |
(see [6]), where
are the ordinary Bernoulli numbers.
From Lemma 2, we have
 | (2.11) |
(see [6]), where
are the Bernoulli polynomials defined by generating function to be
Therefore, by (2.10) and (2.11), we obtain the following corollary.
Corollary 3. For
we have
In (2.4), we have
 | (2.12) |
and
 | (2.13) |
(see [6]).
Therefore, by (2.12) and (2.13), we obtain the following Lemma.
Lemma 4. For
we have
In particular,
Remark. For
by (2.11), we have
(see [6]).
Now, we define the hyper-geometric Daehee polynomials
 | (2.14) |
where 
For example, we have
 | (2.15) |
Thus the hyper-geometric Daehee number are defined by
 | (2.16) |
Note that
is the Daehee number.
 | (2.17) |
where 
 | (2.18) |
Therefore, by (2.18), we obtain the following theorem.
Theorem 5. For
we have
In (2.17), we have
 | (2.19) |
Therefore, by (2.19), we obtain the following theorem.
Theorem 6. For
we have
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