Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Groups acting on quasi-median graphs. An introduction   Quasi-median graphs have been introduced by Mulder in 1980 as a
generalisation of median graphs, known in geometric group theory to naturally
coincide with the class of CAT(0) cube complexes. In his PhD thesis, the author
showed that quasi-median graphs may be useful to study groups as well. In the
present paper, we propose a gentle introduction to the theory of groups acting
on quasi-median graphs.

17
The categories of this paper are: q-fin
24
The categories of this paper are: dg-ga
20
The categories of this paper are: acc-phys
9
The categories of this paper are: nlin
4
The categories of this paper are: cond-mat
5
The categories of this paper are: gr-qc
28
The categories of this paper are: alg-geom
30
The categories of this paper are: q-alg
0
The categories of this paper are: hep-ph
21
The categories of this paper are: adap-org
18
The categories of this paper are: econ
8
The categories of this paper are: hep-ex
29
The categories of this paper are: funct-an
12
The categories of this paper are: nucl-th
27
The categories of this paper are: comp-gas
14
The categories of this paper are: math-ph