Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Scalar Cosmological Perturbations   In this paper we present the study of the scalar cosmological perturbations
of a single field inflationary model up to first order in deviation. The
Christoffel symbols and the tensorial quantities are calculated explicitly in
function of the cosmic time t. The Einstein equations are solved up-to first
order in deviation and the scalar perturbations equation is derived.

3
The categories of this paper are: physics
17
The categories of this paper are: q-fin
33
The categories of this paper are: plasm-ph
2
The categories of this paper are: math
7
The categories of this paper are: hep-th
15
The categories of this paper are: nucl-ex
20
The categories of this paper are: acc-phys
36
The categories of this paper are: cmp-lg
6
The categories of this paper are: astro-ph
10
The categories of this paper are: q-bio
8
The categories of this paper are: hep-ex
0
The categories of this paper are: hep-ph
1
The categories of this paper are: cs
29
The categories of this paper are: funct-an
19
The categories of this paper are: eess
37
The categories of this paper are: supr-con