Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Crystallographic actions on Lie groups and post-Lie algebra structures   This survey on crystallographic groups, geometric structures on Lie groups
and associated algebraic structures is based on a lecture given in the Ostrava
research seminar in $2017$.

23
The categories of this paper are: solv-int
14
The categories of this paper are: math-ph
28
The categories of this paper are: alg-geom
33
The categories of this paper are: plasm-ph
1
The categories of this paper are: cs
22
The categories of this paper are: chao-dyn
11
The categories of this paper are: hep-lat
30
The categories of this paper are: q-alg
34
The categories of this paper are: chem-ph
35
The categories of this paper are: mtrl-th
26
The categories of this paper are: bayes-an
7
The categories of this paper are: hep-th
29
The categories of this paper are: funct-an
3
The categories of this paper are: physics
36
The categories of this paper are: cmp-lg
18
The categories of this paper are: econ