Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Deformed cohomologies of symmetry pseudo-groups and coverings of
  differential equations   We discuss a relation between deformed cohomologies of symmetry pseudo-groups
and coverings of differential equations. Examples include the potential
Khokhlov--Zabolotskaya equation and the Boyer--Finley equation.

15
The categories of this paper are: nucl-ex
35
The categories of this paper are: mtrl-th
21
The categories of this paper are: adap-org
16
The categories of this paper are: stat
17
The categories of this paper are: q-fin
14
The categories of this paper are: math-ph
10
The categories of this paper are: q-bio
1
The categories of this paper are: cs
37
The categories of this paper are: supr-con
13
The categories of this paper are: quant-ph
28
The categories of this paper are: alg-geom
27
The categories of this paper are: comp-gas
11
The categories of this paper are: hep-lat
4
The categories of this paper are: cond-mat
5
The categories of this paper are: gr-qc
3
The categories of this paper are: physics