English

Explicit Formulas for the First Form (q,r)-Dowling Numbers and (q,r)-Whitney-Lah Numbers

Combinatorics 2020-12-15 v1

Abstract

In this paper, a q-analogue of r-Whitney-Lah numbers, also known as (q,r)-Whitney-Lah number, denoted by Lm,r[n,k]qL_{m,r}[n,k]_q is defined using the triangular recurrence relation. Several fundamental properties for the q-analogue are established such as vertical and horizontal recurrence relations, horizontal and exponential generating functions. Moreover, an explicit formula for (q,r)-Whitney-Lah number is derived using the concept of q-difference operator, particularly, the q-analogue of Newton's Interpolation Formula (the umbral version of Taylor series). Furthermore, an explicit formula for the first form (q,r)-Dowling numbers is obtained which is expressed in terms of (q,r)-Whitney-Lah numbers and (q,r)-Whitney numbers of the second kind.

Keywords

Cite

@article{arxiv.2012.07249,
  title  = {Explicit Formulas for the First Form (q,r)-Dowling Numbers and (q,r)-Whitney-Lah Numbers},
  author = {Roberto B. Corcino and Jay M. Ontolan and Maria Rowena S. Lobrigas},
  journal= {arXiv preprint arXiv:2012.07249},
  year   = {2020}
}