Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: String Cosmological Model in Cylindrically Symmetric Inhomogeneous
  Universe with Electromagnetic Field II   Cylindrically symmetric inhomogeneous string cosmological model of the
universe in presence of electromagnetic field is investigated. We have assumed
that F_{12} is the only non-vanishing component of electromagnetic field tensor
F_{ij}. The Maxwell's equations show that F_{12} is the function of $x$ alone
whereas the magnetic permeability is the function of x and t both. To get the
deterministic solution, it has been assumed that the expansion ($\theta$) in
the model is proportional to the eigen value $\sigma^{1}_{1}$ of the shear
tensor $\sigma^{i}_{j}$. Some physical and geometric prperties of the model are
also discussed.

15
The categories of this paper are: nucl-ex
25
The categories of this paper are: patt-sol
4
The categories of this paper are: cond-mat
17
The categories of this paper are: q-fin
0
The categories of this paper are: hep-ph
36
The categories of this paper are: cmp-lg
31
The categories of this paper are: ao-sci
19
The categories of this paper are: eess
12
The categories of this paper are: nucl-th
10
The categories of this paper are: q-bio
18
The categories of this paper are: econ
33
The categories of this paper are: plasm-ph
7
The categories of this paper are: hep-th
34
The categories of this paper are: chem-ph
26
The categories of this paper are: bayes-an
28
The categories of this paper are: alg-geom