Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Multidimensional SU(2) wormhole between two null surfaces   The multidimensional gravity on principal bundle with structural SU(2) gauge
group is considered. The Lorentzian wormhole solution disposed between two null
surfaces is founded in this case. As the nondiagonal components are similar to
a gauge fields (in Kaluza - Klein's sense) then in some sense this solution is
dual to the black hole in 4D Einstein - Yang - MIlls gravity: 4D black hole has
the stationary area outside of event horizon but multidimensional wormhole
inside null surface (on which $ds^2=0$).

19
The categories of this paper are: eess
27
The categories of this paper are: comp-gas
17
The categories of this paper are: q-fin
37
The categories of this paper are: supr-con
32
The categories of this paper are: atom-ph
6
The categories of this paper are: astro-ph
3
The categories of this paper are: physics
34
The categories of this paper are: chem-ph
22
The categories of this paper are: chao-dyn
2
The categories of this paper are: math
4
The categories of this paper are: cond-mat
14
The categories of this paper are: math-ph
16
The categories of this paper are: stat
9
The categories of this paper are: nlin
25
The categories of this paper are: patt-sol
31
The categories of this paper are: ao-sci