Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A proof of a conjecture about a symmetric system of orthogonal
  polynomials   The purpose of this note is to give an affirmative answer to a conjecture
appearing in [Integral Transforms Spec. Funct. 26 (2015) 90-95].

10
The categories of this paper are: q-bio
32
The categories of this paper are: atom-ph
4
The categories of this paper are: cond-mat
24
The categories of this paper are: dg-ga
18
The categories of this paper are: econ
17
The categories of this paper are: q-fin
12
The categories of this paper are: nucl-th
16
The categories of this paper are: stat
8
The categories of this paper are: hep-ex
14
The categories of this paper are: math-ph
7
The categories of this paper are: hep-th
31
The categories of this paper are: ao-sci
19
The categories of this paper are: eess
35
The categories of this paper are: mtrl-th
29
The categories of this paper are: funct-an
30
The categories of this paper are: q-alg