Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Group algebras whose involutory units commute   Let K be a field of characteristic 2 and G a nonabelian locally finite
2-group. Let V(KG) be the group of units with augmentation 1 in the group
algebra KG. An explicit list of groups is given, and it is proved that all
involutions in V(KG) commute with each other if and only if G is isomorphic to
one of the groups on this list. In particular, this property depends only on G
and not at all on K.

28
The categories of this paper are: alg-geom
1
The categories of this paper are: cs
3
The categories of this paper are: physics
9
The categories of this paper are: nlin
19
The categories of this paper are: eess
12
The categories of this paper are: nucl-th
33
The categories of this paper are: plasm-ph
26
The categories of this paper are: bayes-an
6
The categories of this paper are: astro-ph
0
The categories of this paper are: hep-ph
34
The categories of this paper are: chem-ph
29
The categories of this paper are: funct-an
15
The categories of this paper are: nucl-ex
21
The categories of this paper are: adap-org
24
The categories of this paper are: dg-ga
20
The categories of this paper are: acc-phys