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On modified degenerate Carlitz q-Bernoulli numbers and polynomials

Abstract

In a recent study by Kim (Bull. Korean Math. Soc. 53(4):1149-1156, 2016) an attempt was made to examine some of the identities and properties that are related to the degenerate Carlitz q-Bernoulli numbers and polynomials. In our paper we define the modified degenerate q-Bernoulli numbers and polynomials. As part of this we investigate some of the identities and properties that are associated with these numbers and polynomials which are derived from the generating functions and p-adic integral equations.

Introduction

Let p be a fixed prime number. In our study, \(\mathbb{Z}_{p}\), \(\mathbb{Q}_{p}\), and \(\mathbb{C}_{p}\) refer to the ring of p-adic integers, the field of p-adic rational numbers, and the completion of the algebraic closure of \(\mathbb{Q}_{p}\); meanwhile \(\nu_{p}\) will be the normalized exponential valuation of \(\mathbb{C}_{p}\) with \(|p|_{p} = p^{-\nu_{p} (p)} = {1 \over p}\). In terms of the q-extension, q is considered to be as indeterminate, a complex number \(q \in\mathbb{C}\), or p-adic number \(q \in\mathbb{C}_{p}\). If \(q \in\mathbb{C}\), we suppose that \(|q|<1\). If \(q \in\mathbb{C}_{p}\), we suppose that \(|q-1|_{p} < p^{- \frac{1}{p-1}}\) so that \(q^{x} = \exp(x \log q)\) for \(|x|_{p} \leq1\). We use the notation \([x]_{q} = \frac{1- q^{x}}{1-q}\). Note that \(\lim_{q \rightarrow1} [x]_{q} =x\).

It is well known that the Bernoulli numbers are defined by the generating function to be

$$ \frac{t}{e^{t}-1} = \sum_{n=0}^{\infty}B_{n} \frac{t^{n}}{n!} = e^{Bt}\quad (\mbox{see [1--17]}). $$
(1)

By (1), we derive

$$\begin{aligned} t =&\bigl(e^{t} -1\bigr) e^{Bt} = e^{(B+1)t} -e^{Bt} \\ =& \sum_{n=0}^{\infty} \bigl\{ (B+1)^{n} -B_{n} \bigr\} \frac{t^{n}}{n!}. \end{aligned}$$
(2)

For (2), we have

$$ B_{0} =1,\qquad (B+1)^{n} -B_{n} = \left \{ \textstyle\begin{array}{l@{\quad}l} {1} &\text{if } n=1, \\ {0} & \text{if } n> 1 . \end{array}\displaystyle \right . $$
(3)

In [2], Carlitz (1948) defined the recurrence relation as

$$ \gamma_{0,q} =1, \qquad (q\gamma_{q} +1)^{n} - \gamma_{n,q} = \left \{ \textstyle\begin{array}{l@{\quad}l} {1} &\text{if } n=1, \\ {0} & \text{if } n> 1 . \end{array}\displaystyle \right . $$
(4)

Observe that for \(n=1\), by (4), we have

$$\begin{aligned} 1 =& (q \gamma_{q} +1)^{1} - \gamma_{1,q} \\ =& \sum_{l=0}^{1} \binom{1}{l} q^{l} \gamma_{l,q} -\gamma_{1,q} \\ =& \gamma_{0,q} +(q-1) \gamma_{1,q} . \end{aligned}$$
(5)

By (5), we see that if \(q \ne1\), then \(\gamma_{1} \), \(q=0\).

For \(n=2\), as stated in (4), we conclude that

$$\begin{aligned} 0 =& (q \gamma_{q} +1 )^{2} - \gamma_{2,q} \\ =& \sum_{l=0}^{2} \binom{2}{l} q^{l} \gamma_{l,q} -\gamma_{2,q} \\ =& \gamma_{0,q} +2q \gamma_{1,q} + q^{2} \gamma_{2,q} -\gamma_{2,q} \\ =& 1+\bigl(q^{2} -1\bigr) \gamma_{2,q}. \end{aligned}$$
(6)

By (6), we find that \(\gamma_{2,q} = - \frac{1}{q^{2} -1}\). Therefore we state that \(\lim_{q \rightarrow1} \gamma_{2,q} = \frac {1}{0} =\infty\). As a consequence we examine the following recurrence equation which remodels equation (4):

$$ \beta_{0,q} =1,\qquad q(q\beta_{q} +1)^{n} -\beta_{n,q} = \left \{ \textstyle\begin{array}{l@{\quad}l} {1} &\text{if } n=1, \\ {0} & \text{if } n> 1 \end{array}\displaystyle \right .\quad (\mbox{see [2]}). $$
(7)

For \(n=1\), by (7), we have

$$\begin{aligned} 1 =& q(q\beta_{q} +1)^{1} - \beta_{1,q} \\ =& q \sum_{l=0}^{1} \binom{1}{l} q^{l} \beta_{l,q} -\beta_{1,q} \\ =& q(\beta_{0,q} +q\beta_{1,q} )-\beta_{1,q} \\ =& q\beta_{0,q} +q^{2} \beta_{1,q} - \beta_{1,q} . \end{aligned}$$
(8)

By (8), we see that \(1-q =(q^{2} -1) \beta_{1,q}\) and hence \(\beta_{1,q} =- \frac{1}{q+1} = - \frac{1}{[2]_{q}}\).

Therefore we state that \(\lim_{q \rightarrow1} \beta_{1,q} = - \frac {1}{2} =B_{1} \).

For \(n=2\), by (7), we have

$$\begin{aligned} 0 =& q(q\beta_{q} +1)^{2} - \beta_{2,q} \\ =& q\sum_{l=0}^{2} \binom{2}{l} q^{l} \beta_{l,q} -\beta_{2,q} \\ =& q \bigl( \beta_{0,q} +2q\beta_{1,q} +q^{2} \beta_{2,q} \bigr) -\beta_{2,q} \\ =& q -2q^{2} \frac{1}{1+q} +\bigl(q^{3} -1\bigr) \beta_{2,q} \\ =& \frac{q -q^{2}}{1+q} +\bigl(q^{3} -1\bigr) \beta_{2,q}. \end{aligned}$$
(9)

By (9), we see that \(\beta_{2,q} = \frac{q}{[2]_{q} [3]_{q}}\). Therefore we state that \(\lim_{q \rightarrow1}\beta_{2,q} = \frac {1}{6} =B_{2}\).

Let \(\operatorname{UD} (\mathbb{Z}_{p})\) be the space of \({\mathbb {C}_{p}}\)-valued uniformly differentiable functions on \(\mathbb{Z}_{p}\). For \(f \in\operatorname{UD}(\mathbb{Z}_{p} )\), the p-adic q-integral on \(\mathbb{Z}_{p}\) has been defined by Kim as being:

$$ I_{q} (f) = \int_{\mathbb{Z}_{p}} f(x) \,d\mu_{q} (x) = \lim _{N \rightarrow \infty} \frac{1}{[p^{N} ]_{q}} \sum_{x=0}^{p^{N} -1} f(x)q^{x}\quad (\mbox{see [10]}). $$
(10)

The Carlitz’s q-Bernoulli numbers are represented by the p-adic q-integrals on \(\mathbb{Z}_{p}\) accordingly:

$$ \int_{\mathbb{Z}_{p}} [x]^{n}_{q} \,d \mu_{q} (x) = \beta_{n,q}\quad (n \ge0)\ (\mbox{see [9--12]}). $$
(11)

Therefore, for (11), we get

$$ \int_{\mathbb{Z}_{p}} e^{{[x]}_{q} t} \,d\mu_{q} (x) =\sum _{n=0}^{\infty} \beta_{n,q} \frac{t^{n}}{n!} \quad (\mbox{see [6--8, 13]}). $$
(12)

From (12), we are able to derive the following equation:

$$ \beta_{n,q} = \frac{1}{(1-q)^{n}} \sum _{l=0}^{n} \binom{n}{l} (-1)^{l} \frac{l+1}{[l+1]_{q}} \quad (\mbox{see [9--11, 14, 15]}). $$
(13)

Recently, Kim [9] studied some identities and properties of the degenerate Carlitz q-Bernoulli numbers and polynomials. In our paper we define the modified degenerate q-Bernoulli numbers and polynomials. As part of this we investigate some of the identities and properties that are associated with these numbers and polynomials which are calculated from the generating functions and p-adic integral equations.

Modified Carlitz q-Bernoulli numbers and polynomials

As a result of (11), we define the modified Carlitz q-Bernoulli numbers as follows:

$$ \int_{\mathbb{Z}_{p}} q^{-x} [x]^{n}_{q} \,d \mu_{q} (x) = B_{n,q} . $$
(14)

Observe that, for \(n=0\), we state

$$\begin{aligned} B_{0,q} =& \int_{\mathbb{Z}_{p}} q^{-x} \,d\mu_{q} (x) =\lim _{N \rightarrow \infty} \frac{1}{[p^{N} ]_{q}} \sum_{x=0}^{p^{N} -1} 1 \\ =& \lim_{N \rightarrow\infty} \frac{1-q}{1-q^{p^{N}}} p^{N} = \frac {q-1}{\log q} . \end{aligned}$$
(15)

We also observe that if \(f_{1} (x)=f(x+1)\), then

$$\begin{aligned} qI_{q} (f_{1}) =& \lim_{N \rightarrow\infty} \frac{1}{[p^{N} ]_{q}} \sum_{x=0}^{p^{N} -1} f(x+1) q^{x+1} \\ =& \lim_{N \rightarrow\infty} \frac{1}{[p^{N} ]_{q}} \Biggl( \sum _{x=0}^{p^{N} -1} f(x)q^{x} -f(0)+f \bigl(p^{N}\bigr)q^{p^{N}} \Biggr) \\ =& I_{q}(f) + \lim_{N \rightarrow\infty} \biggl( (q-1) \frac {p^{N}}{q^{p^{N}}-1}\frac{ f(p^{N})-f(0) }{p^{N}}+ (q-1)f\bigl(p^{N}\bigr) \biggr) \\ =& I_{q}(f)+ (q-1)f(0)+\frac{q-1}{\log q}f'(0). \end{aligned}$$
(16)

Therefore, by (16), we are able to obtain the p-adic integral equation on \(\mathbb{Z}_{p}\) as follows:

$$ qI_{q} (f_{1} )-I_{q} (f) = (q-1)f(0)+\frac{q-1}{\log q}f^{\prime} (0). $$
(17)

Therefore, examining (14) and (17), if we take \(f(x)=q^{-x} [x]^{n}_{q}\), then we have

$$\begin{aligned}& q \int_{\mathbb{Z}_{p}} q^{-(x+1)} [x+1]^{n}_{q} \,d\mu_{q} (x) - \int_{\mathbb {Z}_{p}} q^{-x} [x]^{n}_{q} \,d \mu_{q} (x) \\& \quad =(q-1) [0]^{n}_{q} + \frac{q-1}{\log q} f^{\prime} (0). \end{aligned}$$
(18)

Hence, we are able to obtain the following recurrence relation results:

$$ B_{0,q} = \frac{q-1}{\log q} , \qquad (qB_{q} +1)^{n} -B_{n,q} = \left \{ \textstyle\begin{array}{l@{\quad}l} {1} &\text{if } n=1, \\ {0} & \text{if } n> 1 . \end{array}\displaystyle \right . $$
(19)

By (19), we state that

$$ B_{n,q} = \frac{1}{(1-q)^{n}} \sum _{l=0}^{n} \binom{n}{l} (-1)^{l} \frac {l}{[l]_{q}}. $$
(20)

From (14), we are able to define the modified Carlitz’s q-Bernoulli polynomials as follows:

$$ \int_{\mathbb{Z}_{p}} q^{-y} e^{[x+y]_{q}t} \,d \mu_{q} (y) = \sum_{n=0}^{\infty} B_{n,q} (x) \frac{t^{n}}{n!} . $$
(21)

For (21), we are able to state

$$ B_{n,q} (x) = \int_{\mathbb{Z}_{p}} q^{-y} [x+y]^{n}_{q} \,d\mu_{q} (y) . $$
(22)

For (22), we calculate

$$\begin{aligned} \begin{aligned}[b] B_{n,q} (x) &= \int_{\mathbb{Z}_{p}} q^{-y} [x+y]^{n}_{q} \,d\mu_{q} (y) \\ &= \frac{1}{(1-q)^{n}} \sum_{l=0}^{n} \binom{n}{l} (-1)^{l} q^{lx} \int _{\mathbb{Z}_{p}} q^{-y} q^{ly} \,d \mu_{q} (y) \\ &= \frac{1}{(1-q)^{n}} \sum_{l=0}^{n} \binom{n}{l} (-1)^{l} q^{lx} \frac {l}{[l]_{q}} . \end{aligned} \end{aligned}$$
(23)

Modified degenerate Carlitz q-Bernoulli numbers and polynomials

Here, we assume that \(\lambda, t \in\mathbb{C}_{p} \), \(0<|\lambda|_{p} \le 1\), \(|t|_{p} < p^{- \frac{1}{p-1}}\).

In terms of (21), we define the modified degenerate Carlitz q-Bernoulli polynomials as

$$ \int_{\mathbb{Z}_{p}} q^{-y} (1+\lambda t)^{\frac{1}{\lambda} [x+y]_{q}} \,d \mu_{q} (y) = \sum_{n=0}^{\infty} B_{n , \lambda, q} (x)\frac{t^{n}}{n!}, $$
(24)

when \(x=0\), \(B_{n,\lambda, q} =B_{n, \lambda,q} (0)\) are called the modified degenerate Carlitz q-Bernoulli numbers.

We observe that

$$\begin{aligned} \int_{\mathbb{Z}_{p}} q^{-y} (1+\lambda t)^{\frac{1}{\lambda} [x+y]_{q}} \,d \mu_{q} (y) =& \sum_{n=0}^{\infty} \int_{\mathbb{Z}_{p}}q^{-y} \binom{\frac {[x+y]_{q}}{\lambda}}{n} \lambda^{n} t^{n} \,d\mu_{q} (y) \\ =& \sum_{n=0}^{\infty} \int_{\mathbb{Z}_{p}}q^{-y} \biggl( \frac {[x+y]_{q}}{\lambda} \biggr)_{n} \,d\mu_{q} (y) \lambda^{n} \frac{t^{n}}{n!}, \end{aligned}$$
(25)

where \((\frac{[x+y]_{q}}{\lambda} )_{n} =\frac {[x+y]_{q}}{\lambda} \times (\frac{[x+y]_{q}}{\lambda} -1 ) \times\cdots\times (\frac{[x+y]_{q}}{\lambda} -n+1 )\). Note that \([x+y]_{q,n,\lambda} =[x+y]_{q} ([x+y]_{q} -\lambda ) \cdots ( [x+y]_{q} -(n-1)\lambda )\) (\(n \ge1\)).

For (25), we are able to derive the following theorem.

Theorem 3.1

For \(n \ge0\), we have

$$ \int_{\mathbb{Z}_{p}} q^{-y} [x+y]_{q,n,\lambda} \,d \mu_{q} (y) =B_{n,\lambda,q}(x) . $$
(26)

Let \(S_{1} (n,m)\) be the Stirling numbers of the first kind, which are defined by \((x)_{n} =\sum_{l=0}^{n} S_{1} (n,l)x^{l}\) (\(n \ge0\)). Note that \(\lim_{\lambda\rightarrow0} B_{n,\lambda,q} (x) =B_{n,q}(x)\).

Then, by using (25), we are able to state

$$\begin{aligned} \lambda^{n} \int_{\mathbb{Z}_{p}} q^{-y} \biggl(\frac{[x+y]_{q}}{\lambda} \biggr)_{n} \,d\mu_{q} (y) =& \sum _{l=0}^{n} S_{1} (n,l) \lambda^{n-l} \int _{\mathbb{Z}_{p}} q^{-y} [x+y]^{l}_{q} \,d\mu_{q} (y) \\ =& \sum_{l=0}^{n} S_{1} (n,l) \lambda^{n-l} B_{l,q} (x) . \end{aligned}$$
(27)

Therefore, by using (26) and (27), we are able to derive the following theorem.

Theorem 3.2

For \(n \ge0\), we have

$$ B_{n,\lambda,q} (x) =\sum_{l=0}^{n} S_{1} (n,l) \lambda^{n-l} B_{l,q} (x) . $$
(28)

By using (23) and (27), we are able to present details of the following corollary.

Corollary 3.3

For \(n \ge0\), we have

$$ B_{n,\lambda,q} (x) =\sum_{l=0}^{n} \sum_{k=0}^{l} \frac{S_{1} (n,l)}{(1-q)^{l}} \binom{l}{k} (-1)^{k} q^{kx} \frac{k}{[k]_{q}} \lambda ^{n-l} . $$
(29)

Observe that

$$\begin{aligned} q^{-y} (1+\lambda t)^{\frac{[x+y]_{q}}{\lambda}} =& q^{-y} e^{\frac {[x+y]_{q}}{\lambda} \log(1+\lambda t)} \\ =& q^{-y} \sum_{m=0}^{\infty} \biggl(\frac{[x+y]_{q}}{\lambda} \biggr)^{m} \frac{1}{m!} \bigl(\log(1+ \lambda t) \bigr)^{m} \\ =& \sum_{m=0}^{\infty} q^{-y} \biggl(\frac{[x+y]_{q}}{\lambda} \biggr)^{m} \frac{1}{m!} m! \sum _{n=m}^{\infty} S_{1} (n,m) \frac {\lambda^{n} t^{n}}{n!} \\ =& \sum_{n=0}^{\infty} \Biggl(\sum _{m=0}^{n} \lambda^{n-m} S_{1} (n,m)q^{-y} [x+y]^{m}_{q} \Biggr) \frac{t^{n}}{n!} . \end{aligned}$$
(30)

Therefore by using (30), we are able to state

$$\begin{aligned} \int_{\mathbb{Z}_{p}} q^{-y} (1+\lambda t)^{\frac{[x+y]_{q}}{\lambda}} \,d \mu_{q} (y) =& \sum_{n=0}^{\infty} \sum_{m=0}^{m} \lambda^{n-m} S_{1} (n,m) \int_{\mathbb{Z}_{p}} q^{-y} [x+y]^{m}_{q} \,d\mu_{q} (y) \frac{t^{n}}{n!} \\ =& \sum_{n=0}^{\infty} \Biggl(\sum _{m=0}^{n} \lambda^{n-m} S_{1} (n,m) B_{m,q} (x) \Biggr) \frac{t^{n}}{n!} . \end{aligned}$$
(31)

By substituting t by \(\frac{1}{\lambda} (e^{\lambda t} -1)\) in (24), we find

$$\begin{aligned} \int_{\mathbb{Z}_{p}} q^{-y} e^{[x+y]_{q} t} \,d \mu_{q} (y) =& \sum_{m=0}^{\infty} B_{m,\lambda,q} (x) \frac{1}{m!} \frac{1}{\lambda ^{m}} \bigl(e^{\lambda t} -1\bigr)^{m} \\ =& \sum_{m=0}^{\infty} B_{m,\lambda,q} (x) \lambda^{-m} \sum_{n=m}^{\infty} S_{2} (n,m) \frac{\lambda^{n} t^{n}}{n!} \\ =& \sum_{n=0}^{\infty} \sum _{m=0}^{n} B_{m,\lambda,q} (x) \lambda ^{n-m} S_{2} (n,m) \frac{t^{n}}{n!}, \end{aligned}$$
(32)

where \(S_{2} (n,m)\) are the Stirling numbers of the second kind as follows:

$$ \bigl(e^{t} -1\bigr)^{m} = m! \sum _{n=m}^{\infty} S_{2} (n,m) \frac{t^{n}}{n!} . $$
(33)

Note that the left-hand side of (32) is derived as

$$\begin{aligned} \int_{\mathbb{Z}_{p}} q^{-y} e^{[x+y]_{q} t} \,d \mu_{q} (y) =& \sum_{n=0}^{\infty} \int_{\mathbb{Z}_{p}} q^{-y} [x+y]^{n}_{q} \,d\mu_{q} (y) \frac {t^{n}}{n!} \\ =& \sum_{n=0}^{\infty} B_{n,q} (x) \frac{t^{n}}{n!} . \end{aligned}$$
(34)

Therefore, by using (32) and (34), the following theorem can be derived.

Theorem 3.4

For \(n \ge0\), we have

$$ B_{n,q} (x) =\sum_{m=0}^{n} B_{m,\lambda,q} (x) \lambda^{n-m} S_{2} (n,m) . $$
(35)

Note that

$$\begin{aligned} q^{-y} (1+\lambda t)^{\frac{[x+y]_{q}}{\lambda}} =& q^{-y} (1+\lambda t)^{\frac{[x]_{q}}{\lambda}} (1+\lambda t)^{\frac{q^{x} [y]_{q}}{\lambda }} \\ =& \Biggl(\sum_{m=0}^{\infty} [x]_{q,m,\lambda} \frac{t^{m}}{m!} \Biggr) \sum_{l=0}^{\infty} q^{-y} \frac{q^{lx}}{\lambda^{l}} \frac {[y]^{l}_{q} (\log(1+\lambda t) )^{l}}{l!} \\ =& \Biggl(\sum_{m=0}^{\infty} [x]_{q,m,\lambda} \frac{t^{m}}{m!} \Biggr) \Biggl(\sum _{k=0}^{\infty} \Biggl(\sum_{l=0}^{k} \lambda ^{k-l} q^{-y+lk} [y]^{l}_{q} S_{1} (k,l) \Biggr)\frac{t^{k}}{k!} \Biggr) \\ =& \sum_{n=0}^{\infty} \Biggl(\sum _{k=0}^{n} \sum_{l=0}^{k} [x]_{q,n-k,\lambda} \lambda^{k-l} q^{-y+lk} [y]^{l}_{q} S_{1} (k,l) \binom {n}{k} \Biggr) \frac{t^{n}}{n!} . \end{aligned}$$
(36)

Thus, by (36), we get

$$\begin{aligned} \sum_{n=0}^{\infty} B_{n,\lambda,q} (x) \frac{t^{n}}{n!} =& \sum_{n=0}^{\infty} \Biggl(\sum_{k=0}^{n} \sum _{l=0}^{k} \binom{n}{k} [x]_{q,n-k,\lambda} \lambda^{k-l} q^{lx} \int_{\mathbb{Z}_{p}} q^{-y} [y]^{l}_{q} \,d \mu_{q} (y) S_{1} (k,l) \Biggr) \frac{t^{n}}{n!} \\ =& \sum_{n=0}^{\infty} \Biggl(\sum _{k=0}^{n} \sum_{l=0}^{k} \binom {n}{k} [x]_{q,n-k,\lambda} \lambda^{k-l} q^{lx} B_{l,q} S_{1} (k,l) \Biggr) \frac{t^{n}}{n!} . \end{aligned}$$
(37)

Therefore, by (37), we obtain the following theorem.

Theorem 3.5

$$ B_{n,\lambda,q} (x) =\sum_{k=0}^{n} \sum_{l=0}^{k} \binom{n}{k} [x]_{q,n-k,\lambda} \lambda^{k-l} q^{lx} B_{l,q} S_{1} (k,l) . $$
(38)

For \(r \in\mathbb{N}\), we define the modified degenerate Carlitz q-Bernoulli polynomials of order r as follows:

$$\begin{aligned}& \int_{\mathbb{Z}_{p}} \cdots \int_{\mathbb{Z}_{p}} q^{-(x_{1} + \cdots+x_{r} )} (1+\lambda t)^{\frac{[x_{1} + \cdots+x_{r} +x]_{q}}{\lambda}} \,d \mu_{q} (x_{1} ) \cdots \,d\mu_{q} (x_{r} ) \\& \quad = \sum_{n=0}^{\infty} B^{(r)}_{n,\lambda,q} (x) \frac{t^{n}}{n!} . \end{aligned}$$
(39)

We observe that

$$\begin{aligned}& \int_{\mathbb{Z}_{p}} \cdots \int_{\mathbb{Z}_{p}} q^{-(x_{1} + \cdots+x_{r} )} (1+\lambda t)^{\frac{[x_{1} + \cdots+x_{r} +x]_{q}}{\lambda}} \,d \mu_{q} (x_{1} ) \cdots \,d\mu_{q} (x_{r} ) \\& \quad = \sum_{m=0}^{\infty} \lambda^{-m} \int_{\mathbb{Z}_{p}} \cdots \int _{\mathbb{Z}_{p}} q^{-(x_{1} + \cdots+x_{r} )} [x_{1} + \cdots+x_{r} +x]^{m}_{q} \,d\mu _{q} (x_{1} ) \cdots \,d\mu_{q} (x_{r} ) \\& \qquad {}\times \frac{1}{m!} \bigl(\log(1+\lambda t) \bigr)^{m} \\& \quad = \sum_{m=0}^{\infty} B^{(r)}_{m,\lambda,q} (x) \lambda^{-m} \sum _{n=m}^{\infty} S_{1} (n,m) \frac{\lambda^{n}}{n!} t^{n} \\& \quad = \sum_{n=0}^{\infty} \Biggl( \sum _{m=0}^{n} \lambda^{n-m} B^{(r)}_{m,q} (x) S_{1} (n,m) \Biggr) \frac{t^{n}}{n!}, \end{aligned}$$
(40)

where \(B^{(r)}_{m,q} (x)\) are the modified Carlitz q-Bernoulli polynomials of order r.

As a consequence of using (39) and (40), the following theorem can be derived.

Theorem 3.6

For \(n \ge0\), we have

$$ B^{(r)}_{n,\lambda,q} (x) =\sum _{m=0}^{n} \lambda^{n-m} B^{(r)}_{m,q} (x) S_{1} (n,m) . $$
(41)

Replacing t by \(\frac{1}{\lambda} (e^{\lambda t} -1)\) in (39), we have

$$\begin{aligned}& \int_{\mathbb{Z}_{p}} \cdots \int_{\mathbb{Z}_{p}} q^{-(x_{1} + \cdots+x_{r} )} e^{[x_{1} + \cdots+x_{r} +x]_{q} t} \,d \mu_{q} (x_{1} ) \cdots \,d\mu_{q} (x_{r} ) \\& \quad = \sum_{m=0}^{\infty} B^{(r)}_{m,\lambda,q} (x) \frac{1}{m!} \lambda^{-m} \bigl(e^{\lambda t} -1\bigr)^{m} \\& \quad = \sum_{m=0}^{\infty} B^{(r)}_{m,\lambda,q} (x) \lambda^{-m} \sum _{n=m}^{\infty} S_{2} (n,m) \frac{\lambda^{n} t^{n}}{n!} \\& \quad = \sum_{n=0}^{\infty} \Biggl(\sum _{m=0}^{n} \lambda^{n-m} B^{(r)}_{m,\lambda,q} (x) S_{2} (n,m) \Biggr) \frac{t^{n}}{n!} . \end{aligned}$$
(42)

By comparing the coefficients on the right hand sides of (42), the following theorem can be obtained.

Theorem 3.7

For \(n \ge0\), we have

$$ B^{(r)}_{n,q} (x) =\sum _{m=0}^{n} \lambda^{n-m} B^{(r)}_{m,\lambda,q} (x) S_{2} (n,m). $$
(43)

References

  1. 1.

    Bayad, A, Kim, T: Higher recurrences for Apostol-Bernoulli-Euler numbers. Russ. J. Math. Phys. 19(1), 1-10 (2012)

    MathSciNet  Article  MATH  Google Scholar 

  2. 2.

    Carlitz, L: q-Bernoulli numbers and polynomials. Duke Math. J. 15, 987-1000 (1948)

    MathSciNet  Article  MATH  Google Scholar 

  3. 3.

    Carlitz, L: A degenerate Staudt-Clausen theorem. Arch. Math. (Basel) 7, 28-33 (1956)

    MathSciNet  Article  MATH  Google Scholar 

  4. 4.

    Carlitz, L: Degenerate Stirling, Bernoulli and Eulerian numbers. Util. Math. 15, 51-88 (1979)

    MathSciNet  MATH  Google Scholar 

  5. 5.

    Kim, DS, Kim, T: Generalized Boole numbers and polynomials. Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat. 110(2), 823-839 (2016)

    MathSciNet  Article  MATH  Google Scholar 

  6. 6.

    Kim, DS, Kim, T: Some identities of symmetry for q-Bernoulli polynomials under symmetric group of degree n. Ars Comb. 126, 435-441 (2016)

    MathSciNet  MATH  Google Scholar 

  7. 7.

    Kim, T, Dolgy, V, Kim, DS: Some identities of symmetry for q-Bernoulli polynomials under symmetric group of \(S_{3}\). J. Nonlinear Convex Anal. 16(9), 1869-1880 (2016)

    MATH  Google Scholar 

  8. 8.

    Kim, T, Kim, DS, Kwon, H-I: Some identities relating to degenerate Bernoulli polynomials. Filomat 30(4), 905-912 (2016)

    MathSciNet  Article  Google Scholar 

  9. 9.

    Kim, T: On degenerate q-Bernoulli polynomials. Bull. Korean Math. Soc. 53(4), 1149-1156 (2016)

    MathSciNet  Article  MATH  Google Scholar 

  10. 10.

    Kim, T: q-Volkenborn integration. Russ. J. Math. Phys. 9(3), 288-299 (2002)

    MathSciNet  MATH  Google Scholar 

  11. 11.

    Kim, T: q-Bernoulli numbers and polynomials associated with Gaussian binomial coefficients. Russ. J. Math. Phys. 15, 51-57 (2007)

    MathSciNet  Article  MATH  Google Scholar 

  12. 12.

    Kim, T: On the weighted q-Bernoulli numbers and polynomials. Adv. Stud. Contemp. Math. 21(2), 201-2015 (2011)

    MathSciNet  Google Scholar 

  13. 13.

    Kim, T, Kim, DS, Seo, J-J: Fully degenerate poly-Bernoulli numbers and polynomials. Open Math. 14, 545-556 (2016)

    MathSciNet  MATH  Google Scholar 

  14. 14.

    Kim, T, Kwon, H-I, Seo, J-J: Degenerate q-Changhee polynomials. J. Nonlinear Sci. Appl. 9(5), 2389-2393 (2016)

    MathSciNet  MATH  Google Scholar 

  15. 15.

    Kim, T, Kim, DS, Dolgy, DV: Degenerate q-Euler polynomials. Adv. Differ. Equ. 2015, 246 (2015)

    MathSciNet  Article  Google Scholar 

  16. 16.

    Park, JW: New approach to q-Bernoulli polynomials with weight or weak weight. Adv. Stud. Contemp. Math. 24(1), 39-44 (2014)

    MathSciNet  MATH  Google Scholar 

  17. 17.

    Seo, J-J, Rim, SH, Lee, SH, Dolgy, DV, Kim, T: q-Bernoulli numbers and polynomials related to p-adic invariant integral on \(\mathbb{Z}_{p}\). Proc. Jangjeon Math. Soc. 16(3), 321-326 (2013)

    MathSciNet  MATH  Google Scholar 

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Acknowledgements

This paper was supported by Wonkwang University in 2016.

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Correspondence to Lee-Chae Jang.

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Lee, J.G., Jang, LC. On modified degenerate Carlitz q-Bernoulli numbers and polynomials. Adv Differ Equ 2017, 22 (2017). https://doi.org/10.1186/s13662-016-1060-7

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MSC

  • 05A10
  • 11B68
  • 11S80
  • 05A19