Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A note on poly-Bernoulli numbers and polynomials of the second kind   In this paper, we consider the poly-Bernoulli numbers and polynomials of the
second kind and presents new and explicit formulae for calculating the
poly-Bernoulli numbers of the second kind and the Stirling numbers of the
second kind.

17
The categories of this paper are: q-fin
13
The categories of this paper are: quant-ph
15
The categories of this paper are: nucl-ex
35
The categories of this paper are: mtrl-th
10
The categories of this paper are: q-bio
31
The categories of this paper are: ao-sci
34
The categories of this paper are: chem-ph
4
The categories of this paper are: cond-mat
20
The categories of this paper are: acc-phys
23
The categories of this paper are: solv-int
22
The categories of this paper are: chao-dyn
12
The categories of this paper are: nucl-th
27
The categories of this paper are: comp-gas
37
The categories of this paper are: supr-con
14
The categories of this paper are: math-ph
18
The categories of this paper are: econ