Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Recurrence relations for binomial-Eulerian polynomials   Binomial-Eulerian polynomials were introduced by Postnikov, Reiner and
Williams. In this paper, properties of the binomial-Eulerian polynomials,
including recurrence relations and generating functions are studied. We present
three constructive proofs of the recurrence relations for binomial-Eulerian
polynomials. Moreover, we give a combinatorial interpretation of the Betti
number of the complement of the k-equal real hyperplane arrangement.

16
The categories of this paper are: stat
9
The categories of this paper are: nlin
31
The categories of this paper are: ao-sci
4
The categories of this paper are: cond-mat
12
The categories of this paper are: nucl-th
28
The categories of this paper are: alg-geom
34
The categories of this paper are: chem-ph
25
The categories of this paper are: patt-sol
1
The categories of this paper are: cs
36
The categories of this paper are: cmp-lg
14
The categories of this paper are: math-ph
3
The categories of this paper are: physics
26
The categories of this paper are: bayes-an
29
The categories of this paper are: funct-an
7
The categories of this paper are: hep-th
30
The categories of this paper are: q-alg