Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Restoring General Relativity in massive bi-gravity theory   We study static spherically symmetric solutions of massive bi-gravity theory,
free from the Boulware-Deser ghost. We show the recovery of General Relativity
via the Vainshtein mechanism, in the weak limit of the physical metric. We find
a single polynomial equation determining the behavior of the solution for
distances smaller than the inverse graviton mass. This equation is generically
of the seventh order, while for a specific choice of the parameters of the
theory it can be reduced to lower orders. The solution is analytic in different
regimes: for distances below the Vainshtein radius (where General Relativity is
recovered), and in the opposite regime, beyond the Vainshtein radius, where the
solution approaches the flat metric.

34
The categories of this paper are: chem-ph
2
The categories of this paper are: math
36
The categories of this paper are: cmp-lg
31
The categories of this paper are: ao-sci
23
The categories of this paper are: solv-int
18
The categories of this paper are: econ
9
The categories of this paper are: nlin
30
The categories of this paper are: q-alg
21
The categories of this paper are: adap-org
10
The categories of this paper are: q-bio
13
The categories of this paper are: quant-ph
17
The categories of this paper are: q-fin
37
The categories of this paper are: supr-con
12
The categories of this paper are: nucl-th
6
The categories of this paper are: astro-ph
19
The categories of this paper are: eess