Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A short introduction to de Branges--Rovnyak spaces   The notes provide a short introduction to de Branges--Rovnyak spaces. They
cover some basic facts and are intended to give the reader a taste of the
theory, providing sufficient motivation to make it interesting.

31
The categories of this paper are: ao-sci
21
The categories of this paper are: adap-org
28
The categories of this paper are: alg-geom
20
The categories of this paper are: acc-phys
5
The categories of this paper are: gr-qc
8
The categories of this paper are: hep-ex
17
The categories of this paper are: q-fin
18
The categories of this paper are: econ
3
The categories of this paper are: physics
32
The categories of this paper are: atom-ph
4
The categories of this paper are: cond-mat
25
The categories of this paper are: patt-sol
14
The categories of this paper are: math-ph
19
The categories of this paper are: eess
36
The categories of this paper are: cmp-lg
24
The categories of this paper are: dg-ga