Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On verbally closed subgroups of free solvable groups   We study verbally closed subgroups of free solvable groups. A number of
results is proved that give sufficient conditions under whose a verbally closed
subgroup is turned to be a retract and so algebraically closed of the full
group.

9
The categories of this paper are: nlin
28
The categories of this paper are: alg-geom
27
The categories of this paper are: comp-gas
21
The categories of this paper are: adap-org
13
The categories of this paper are: quant-ph
25
The categories of this paper are: patt-sol
0
The categories of this paper are: hep-ph
23
The categories of this paper are: solv-int
36
The categories of this paper are: cmp-lg
15
The categories of this paper are: nucl-ex
24
The categories of this paper are: dg-ga
33
The categories of this paper are: plasm-ph
17
The categories of this paper are: q-fin
30
The categories of this paper are: q-alg
1
The categories of this paper are: cs
10
The categories of this paper are: q-bio