Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Aspects of $(4+4)$-Kaluza-Klein type theory   We develop a type of Kaluza-Klein formalism in $(4+4)$-dimensions. In the
framework of this formalism we obtain a new kind of Schwarzschild metric
solutions that via Kruskal-Szequeres can be interpreted as mirror black and
white holes. We found that this new type of mirror black and white holes
solutions in $(3+1)$-dimensions support the idea that the original space-time
can be extended to $(4+4)$-signature.
  Using octonions, we also discus linearized gravity in $(4+4)$-dimensions.

30
The categories of this paper are: q-alg
1
The categories of this paper are: cs
37
The categories of this paper are: supr-con
26
The categories of this paper are: bayes-an
16
The categories of this paper are: stat
0
The categories of this paper are: hep-ph
6
The categories of this paper are: astro-ph
10
The categories of this paper are: q-bio
11
The categories of this paper are: hep-lat
33
The categories of this paper are: plasm-ph
27
The categories of this paper are: comp-gas
22
The categories of this paper are: chao-dyn
31
The categories of this paper are: ao-sci
36
The categories of this paper are: cmp-lg
9
The categories of this paper are: nlin
24
The categories of this paper are: dg-ga