Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Anisotropic Friedmann-Robertson-Walker universe from nonlinear massive
  gravity   In the scope of the nonlinear massive gravity, we study fixed points of
evolution equations for a Bianchi type--I universe. We find a new attractor
solution with non-vanishing anisotropy, on which the physical metric is
isotropic but the Stuckelberg configuration is anisotropic. As a result, at the
background level, the solution describes a homogeneous and isotropic universe,
while a statistical anisotropy is expected from perturbations, suppressed by
smallness of the graviton mass.

13
The categories of this paper are: quant-ph
8
The categories of this paper are: hep-ex
30
The categories of this paper are: q-alg
26
The categories of this paper are: bayes-an
29
The categories of this paper are: funct-an
22
The categories of this paper are: chao-dyn
11
The categories of this paper are: hep-lat
2
The categories of this paper are: math
27
The categories of this paper are: comp-gas
10
The categories of this paper are: q-bio
21
The categories of this paper are: adap-org
24
The categories of this paper are: dg-ga
19
The categories of this paper are: eess
15
The categories of this paper are: nucl-ex
25
The categories of this paper are: patt-sol
36
The categories of this paper are: cmp-lg