Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Integer versions of Yang-Mills theory   In a recent paper, 't Hooft asks for an integer version of Yang-Mills theory,
in the belief that this is the way the universe really is at the Planck scale.
Specifically, he asks for an integer version of the gauge group of the standard
model. Such groups were completely classified more than 100 years ago, and here
I detail the group theory and representation theory (and some of the physics)
of the specific case that I believe answers 't Hooft's question.

9
The categories of this paper are: nlin
23
The categories of this paper are: solv-int
5
The categories of this paper are: gr-qc
6
The categories of this paper are: astro-ph
32
The categories of this paper are: atom-ph
20
The categories of this paper are: acc-phys
33
The categories of this paper are: plasm-ph
4
The categories of this paper are: cond-mat
1
The categories of this paper are: cs
35
The categories of this paper are: mtrl-th
0
The categories of this paper are: hep-ph
25
The categories of this paper are: patt-sol
28
The categories of this paper are: alg-geom
29
The categories of this paper are: funct-an
10
The categories of this paper are: q-bio
22
The categories of this paper are: chao-dyn