Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Non-isomorphic 2-groups with isomorphic modular group algebras   We provide non-isomorphic finite 2-groups which have isomorphic group
algebras over any field of characteristic 2, thus settling the Modular
Isomorphism Problem.

30
The categories of this paper are: q-alg
24
The categories of this paper are: dg-ga
15
The categories of this paper are: nucl-ex
4
The categories of this paper are: cond-mat
17
The categories of this paper are: q-fin
36
The categories of this paper are: cmp-lg
35
The categories of this paper are: mtrl-th
1
The categories of this paper are: cs
29
The categories of this paper are: funct-an
13
The categories of this paper are: quant-ph
19
The categories of this paper are: eess
20
The categories of this paper are: acc-phys
7
The categories of this paper are: hep-th
21
The categories of this paper are: adap-org
9
The categories of this paper are: nlin
0
The categories of this paper are: hep-ph