Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Metagroups and their smashed twisted wreath products   In this article nonassociative metagroups are studied. Different types of
smashed products and smashed twisted wreath products are scrutinized.
Extensions of central metagroups are studied.

18
The categories of this paper are: econ
13
The categories of this paper are: quant-ph
1
The categories of this paper are: cs
17
The categories of this paper are: q-fin
12
The categories of this paper are: nucl-th
10
The categories of this paper are: q-bio
24
The categories of this paper are: dg-ga
26
The categories of this paper are: bayes-an
16
The categories of this paper are: stat
5
The categories of this paper are: gr-qc
21
The categories of this paper are: adap-org
15
The categories of this paper are: nucl-ex
33
The categories of this paper are: plasm-ph
0
The categories of this paper are: hep-ph
11
The categories of this paper are: hep-lat
31
The categories of this paper are: ao-sci