Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On quasi-Frobenius semigroup algebras   We define quasi-Frobenius semigroups and find necessary and sufficient
conditions under which a semigroup algebra of a 0-cancellative semigroup is
quasi-Frobenius.

21
The categories of this paper are: adap-org
19
The categories of this paper are: eess
10
The categories of this paper are: q-bio
20
The categories of this paper are: acc-phys
32
The categories of this paper are: atom-ph
13
The categories of this paper are: quant-ph
34
The categories of this paper are: chem-ph
23
The categories of this paper are: solv-int
8
The categories of this paper are: hep-ex
7
The categories of this paper are: hep-th
22
The categories of this paper are: chao-dyn
25
The categories of this paper are: patt-sol
3
The categories of this paper are: physics
29
The categories of this paper are: funct-an
1
The categories of this paper are: cs
0
The categories of this paper are: hep-ph