Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Solutions to the Einstein-Maxwell-Current System with Sasakian maifolds   We construct stationary solutions to the Einstein-Maxwell-current system by
using the Sasakian manifold for the three-dimensional space. Both the magnetic
field and the electric current in the solution are specified by the contact
form of the Sasakian manifold. The solutions contain an arbitrary function that
describes inhomogeneity of the number density of the charged particles, and the
function determines the curvature of the space.

17
The categories of this paper are: q-fin
16
The categories of this paper are: stat
25
The categories of this paper are: patt-sol
13
The categories of this paper are: quant-ph
19
The categories of this paper are: eess
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
9
The categories of this paper are: nlin
27
The categories of this paper are: comp-gas
10
The categories of this paper are: q-bio
23
The categories of this paper are: solv-int
30
The categories of this paper are: q-alg
31
The categories of this paper are: ao-sci
26
The categories of this paper are: bayes-an
12
The categories of this paper are: nucl-th