Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Q-operators are 't Hooft lines   We study 't Hooft lines in four-dimensional holomorphic-topological
Chern-Simons theory. We relate them to Q-operators in the theory of integrable
systems. We give a physical interpretation of the fundamental TQ and QQ
relations satisfied by Q-operators and conventional transfer matrices.

29
The categories of this paper are: funct-an
26
The categories of this paper are: bayes-an
1
The categories of this paper are: cs
20
The categories of this paper are: acc-phys
5
The categories of this paper are: gr-qc
36
The categories of this paper are: cmp-lg
35
The categories of this paper are: mtrl-th
18
The categories of this paper are: econ
25
The categories of this paper are: patt-sol
11
The categories of this paper are: hep-lat
31
The categories of this paper are: ao-sci
13
The categories of this paper are: quant-ph
10
The categories of this paper are: q-bio
19
The categories of this paper are: eess
27
The categories of this paper are: comp-gas
28
The categories of this paper are: alg-geom