Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Lectures on chiral algebras of $\mathcal{N} \geqslant 2$ superconformal
  field theories   Any four-dimensional $\mathcal{N} \geqslant 2$ superconformal field theory
possess a protected subsector isomorphic to a two-dimensional chiral algebra
\cite{Beem:2013sza}. The goal of these lectures is to provide an introduction
to the subject, covering the construction of the chiral algebras, the
consequences for four-dimensional physics, as well as a brief summary of recent
progress. This is the writeup of the lectures given at the Winter School "YRISW
2020" to appear in a special issue of JPhysA.

21
The categories of this paper are: adap-org
6
The categories of this paper are: astro-ph
26
The categories of this paper are: bayes-an
19
The categories of this paper are: eess
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
22
The categories of this paper are: chao-dyn
5
The categories of this paper are: gr-qc
27
The categories of this paper are: comp-gas
9
The categories of this paper are: nlin
0
The categories of this paper are: hep-ph
37
The categories of this paper are: supr-con
28
The categories of this paper are: alg-geom
18
The categories of this paper are: econ
34
The categories of this paper are: chem-ph