Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The seed of magnetic monopoles in the early inflationary universe from a
  5D vacuum state   Starting from a 5D Riemann flat metric, we have induced an effective 4D
Hermitian metric which has an antisymmetric part which is purely imaginary. We
have worked an example in which both, non-metricity and contorsion are zero. We
obtained that the production of monopoles should be insignificant at the end of
inflation and the tensor metric should come asymptotically diagonal and
describing a nearly 4D de Sitter expansion.

19
The categories of this paper are: eess
8
The categories of this paper are: hep-ex
21
The categories of this paper are: adap-org
26
The categories of this paper are: bayes-an
29
The categories of this paper are: funct-an
37
The categories of this paper are: supr-con
17
The categories of this paper are: q-fin
7
The categories of this paper are: hep-th
32
The categories of this paper are: atom-ph
18
The categories of this paper are: econ
4
The categories of this paper are: cond-mat
23
The categories of this paper are: solv-int
24
The categories of this paper are: dg-ga
28
The categories of this paper are: alg-geom
11
The categories of this paper are: hep-lat
10
The categories of this paper are: q-bio