Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Realistic Cyclic Magnetic Universe   This work presents a complete cyclic cosmological scenario based on nonlinear
magnetic field. It is constructed a model composed by five fluids namely
baryonic matter, dark matter, radiation, neutrinos and a cosmological magnetic
field. The first four fluids are treated in the standard way and the fifth
fluid, the magnetic field, is described by a nonlinear electrodynamics. The
free parameters are fitted by observational data (SNIa, CMB, extragalactic
magnetic fields, etc) and by simple theoretical considerations. As result
arises a cyclic cosmological model which preserves the main successes of
standard big bang model and solve some other problems like the initial
singularity, the present acceleration and the Big Rip.

28
The categories of this paper are: alg-geom
34
The categories of this paper are: chem-ph
12
The categories of this paper are: nucl-th
0
The categories of this paper are: hep-ph
27
The categories of this paper are: comp-gas
37
The categories of this paper are: supr-con
26
The categories of this paper are: bayes-an
11
The categories of this paper are: hep-lat
1
The categories of this paper are: cs
35
The categories of this paper are: mtrl-th
16
The categories of this paper are: stat
8
The categories of this paper are: hep-ex
32
The categories of this paper are: atom-ph
18
The categories of this paper are: econ
13
The categories of this paper are: quant-ph
14
The categories of this paper are: math-ph