Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Seeable matter; unseeable antimatter   The universe we see gives every sign of being composed of matter. This is
considered a major unsolved problem in theoretical physics. Using the
mathematical modeling based on the algebra ${\bf{T}} :=
{\bf{C}}\otimes{\bf{H}}\otimes{\bf{O}}$, an interpretation is developed that
suggests that this seeable universe is not the whole universe; there is an
unseeable part of the universe composed of antimatter galaxies and stuff, and
an extra 6 dimensions of space (also unseeable) linking the matter side to the
antimatter - at the very least.

23
The categories of this paper are: solv-int
12
The categories of this paper are: nucl-th
21
The categories of this paper are: adap-org
27
The categories of this paper are: comp-gas
31
The categories of this paper are: ao-sci
24
The categories of this paper are: dg-ga
6
The categories of this paper are: astro-ph
13
The categories of this paper are: quant-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
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
14
The categories of this paper are: math-ph
16
The categories of this paper are: stat