Abstract
In this paper, we consider the higher order degenerate Changhee–Genocchi polynomials of the second kind by using generating functions and the Riordan matrix methods. At the same time, we give some properties of the higher order degenerate Changhee–Genocchi polynomials of the second kind. In addition, we establish some new equalities involving the higher order degenerate Changhee–Genocchi polynomials of the second kind, the generalized Bell polynomials, higher order Changhee polynomials, the higher order degenerate Daehee polynomials of the second kind, Lah numbers and Stirling numbers, etc.
1. Introduction
At first, in 1979, Carlitz studied and discovered about degenerate combinatorial numbers and polynomials, and named degenerate Bernoulli and Euler numbers and polynomials ([1,2]). In recent years, the classical combinatorial numbers and polynomials have been extended to different degrees by using the generating function method, the Riordan array method, and the asymptotic counting method, the probabilistic method, umbral calculus, and so on. Through these methods, the basic properties of combinatorial sequences can be studied, as well as some symmetric forms, the simplification of multiple sums to single sums, etc. In 2009, Taekyun Kim gave some properties of Genocchi numbers and polynomials ([3]). More degenerate versions of classical combinatorial numbers and polynomials are discovered and derived. In 2017, Kim et al. studied the degenerate Changhee–Genocchi polynomials and numbers of the second kind and gave some new identities ([4]). In this paper, we derive some identities involving the higher order degenerate Changhee–Genocchi polynomials and numbers of the second kind and special combination sequences.
The higher order degenerate Changhee–Genocchi polynomials of the second kind are defined by the following generating function in ([4]).
When , are called the degenerate Changhee–Genocchi polynomials of the second kind.
The generating functions of the relevant special combinatorial sequences involved in this paper are as follows: (see [1,2,3,5,6,7,8,9,10,11,12,13,14])
The higher order degenerate Euler polynomials are defined by the following generating function to be
The negative order degenerate Euler polynomials are defined by the following generating function to be
The higher order degenerate Genocchi polynomials are defined by the following generating function to be
The higher order degenerate Changhee polynomials of the second kind are defined by the following generating function to be
The higher order degenerate Daehee polynomials of the second kind are defined by the following generating function to be
The higher order Changhee polynomials are defined by
The higher order Changhee–Genocchi polynomials are defined by
When , are called the higher order Changhee–Genocchi numbers.
The Lah numbers are given by the generating function
The generalized Bell polynomials of the first kind are given by the generating function
The generalized Bell polynomials of the second kind are given by the generating function
The Stirling numbers of the first kind and the second kind are defined by
The generalized Stirling numbers of the first kind and the second kind are defined by
Lemma 1
(Inversion Formula [13]). Let be functions defined on the set of positive integers, then
A Riordan array is a pair of formal power series with . It defines an infinite lower triangular array ( is non-negative integer) according to the rule:
Hence, we write .
Lemma 2
([14]). If is an Riordan array and is the generating function of the sequence , i.e, or . Then, we have
2. Some Properties about the Higher Order Degenerate Changhee–Genocchi Numbers and Polynomials of the Second Kind
In this section, we establish some identities and give some properties of the higher order degenerate Changhee–Genocchi numbers and polynomials of the second kind by using generating functions.
Theorem 1.
For non-negative integer n, we obtain
Proof.
By , we get
Comparing the coefficients of in both sides, we get the identities. □
Corollary 1.
For in , we obtain
Corollary 2.
For in , we obtain
Corollary 3.
For in , we obtain
For in , we obtain
For in , we obtain
Theorem 2.
For integer , we have
Proof.
From generating function , we have
Comparing the coefficients of in both sides, we can easily get the identities. □
Corollary 4.
For , we have
Theorem 3.
For integer , we have
Proof.
From generating function , we have
Comparing the coefficients of in both sides, we can easily get the identities. □
Corollary 5.
For in , we have
Corollary 6.
For in , we have
Theorem 4.
For non-negative integer n, we obtain
Proof.
From generating function , we get
On the one hand,
On the other hand,
Therefore, we obtain the result.
For in , we can get the conclusion from [3]:
□
Theorem 5.
For non-negative integer , we have
Proof.
From generating function (1), we have
Comparing the coefficients of in both sides, we obtain the result. □
Corollary 7.
For in , we have
Theorem 6.
For non-negative integer , we have
Proof.
From generating function , we get
Comparing the coefficients of in both sides, we can easily get the identities. □
Corollary 8.
For in , we have
Theorem 7.
For non-negative integer , we have
Proof.
From generating function (1), (3), we get
Comparing the coefficients of in both sides, we can easily get the identities. □
Corollary 9.
For in , we have
Theorem 8.
For non-negative integer n, we have
Proof.
From generating function , we get
Therefore, we obtain the required result. □
3. Identities about the Higher Order Degenerate Changhee–Genocchi Numbers and Polynomials of the Second Kind
In this section, by means of the Riordan matrix, we derive some new equalities between the higher order degenerate Changhee–Genocchi numbers and polynomials of the second kind and Striling numbers, Bell numbers, Changhee numbers, and Lah numbers.
Theorem 9.
For non-negative integer n, we have
Proof.
By Lemma 2 (19), we get
□
Corollary 10.
For in , we have
By means of , the inverse relation . This leads to the following conclusion,
Theorem 10.
For non-negative integer n, we have
Corollary 11.
For in , we have
Theorem 11.
For non-negative integer n, we have
Proof.
By using , we see that
Therefore, we obtain the required result. □
Corollary 12.
For in , we have
Corollary 13.
For in , we have
Corollary 14.
For in , we have
By the inverse relation , we have
Theorem 12.
For non-negative integer n, we have
Which completes the proof.
Theorem 13.
For integer , we have
Proof.
By , we get
We acquire the desired result. □
Corollary 15.
For in , we have
By the inverse relation , we have
Theorem 14.
For integer , we have
Theorem 15.
For integer , we have
Proof.
From , we note that
Which completes the proof. □
Theorem 16.
For integer , we have
Proof.
By , we get
Which completes the proof. □
Corollary 16.
For in , we have
Corollary 17.
For in , we have
4. Conclusions
The degenerate Changhee–Genocchi numbers and polynomials of the second kind are a combinatorial sequence that have been generalized to Changhee–Genocchi polynomials in recent years. In this paper, the basic properties of higher order degenerate Changhee–Genocchi numbers and polynomials of the second kind are given by using generating functions and the Riordan matrix methods. Additionally, the combinatorial constants between the higher order degenerate Changhee–Genocchi numbers and polynomials of the second kind and other special combinatorial sequences are derived. Next, we can further study and generalize them using probabilistic methods, asymptotic methods, etc. More importantly, degenerate Changhee–Genocchi numbers and polynomials of the second kind can be used not only in mathematics, mathematical physics equations, computer science, etc.
Author Contributions
Writing—original draft preparation, L.L., W.; writing—review and editing, W.; funding acquisition, W. All authors have read and agreed to the published version of the manuscript.
Funding
This research was funded by the National Natural Science Foundation of China under Grant 11461050 and The APC was funded by Natural Science Foundation of Inner Mongolia 2020MS01020.
Data Availability Statement
Not applicable.
Acknowledgments
The author sincerely thanks Wuyungaowa for her guidance.
Conflicts of Interest
The authors declare no conflict of interest.
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