Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: TeVeS Cosmology : Covariant formalism for the background evolution and
  linear perturbation theory   A relativistic theory of gravity has recently been proposed by Bekenstein,
where gravity is mediated by a tensor, a vector and a scalar field, thus called
TeVeS. The theory aims at modifying gravity in such a way as to reproduce
Milgrom's MOdified Newtonian Dynamics (MOND) in the weak field,
non-relativistic limit, which provides a framework to solve the missing mass
problem in galaxies without invoking dark matter. In this paper I apply a
covariant approach to formulate the cosmological equations for this theory, for
both the background and linear perturbations. I derive the necessary perturbed
equations for scalar, vector and tensor modes without adhering to a particular
gauge. Special gauges are considered in the appendix.

18
The categories of this paper are: econ
25
The categories of this paper are: patt-sol
14
The categories of this paper are: math-ph
0
The categories of this paper are: hep-ph
22
The categories of this paper are: chao-dyn
37
The categories of this paper are: supr-con
11
The categories of this paper are: hep-lat
3
The categories of this paper are: physics
35
The categories of this paper are: mtrl-th
5
The categories of this paper are: gr-qc
2
The categories of this paper are: math
13
The categories of this paper are: quant-ph
23
The categories of this paper are: solv-int
28
The categories of this paper are: alg-geom
10
The categories of this paper are: q-bio
21
The categories of this paper are: adap-org