Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Higher Br\'ezin-Gross-Witten tau-functions and intersection theory of
  Witten's and Norbury's classes   In this paper, we consider the higher Br\'ezin-Gross-Witten tau-functions,
given by the matrix integrals. For these tau-functions we construct the
canonical Kac-Schwarz operators, quantum spectral curves, and
$W^{(3)}$-constraints. For the simplest representative we construct the
cut-and-join operators, which describe the algebraic version of the topological
recursion. We also investigate a one-parametric generalization of the the
higher Br\'ezin-Gross-Witten tau-functions. We claim that the higher
Br\'ezin-Gross-Witten tau-functions govern the intersection theory for the
product of Witten's and Norbury's classes.

29
The categories of this paper are: funct-an
3
The categories of this paper are: physics
8
The categories of this paper are: hep-ex
13
The categories of this paper are: quant-ph
27
The categories of this paper are: comp-gas
18
The categories of this paper are: econ
35
The categories of this paper are: mtrl-th
25
The categories of this paper are: patt-sol
20
The categories of this paper are: acc-phys
10
The categories of this paper are: q-bio
31
The categories of this paper are: ao-sci
12
The categories of this paper are: nucl-th
6
The categories of this paper are: astro-ph
16
The categories of this paper are: stat
17
The categories of this paper are: q-fin
5
The categories of this paper are: gr-qc