Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the Origin of Gravitational Lorentz Covariance   We provide evidence that general relativity is the unique spatially covariant
effective field theory of the transverse, traceless graviton degrees of
freedom. The Lorentz covariance of general relativity, having not been assumed
in our analysis, is thus plausibly interpreted as an accidental or emergent
symmetry of the gravitational sector.

16
The categories of this paper are: stat
3
The categories of this paper are: physics
2
The categories of this paper are: math
34
The categories of this paper are: chem-ph
9
The categories of this paper are: nlin
1
The categories of this paper are: cs
12
The categories of this paper are: nucl-th
25
The categories of this paper are: patt-sol
23
The categories of this paper are: solv-int
11
The categories of this paper are: hep-lat
10
The categories of this paper are: q-bio
20
The categories of this paper are: acc-phys
37
The categories of this paper are: supr-con
28
The categories of this paper are: alg-geom
13
The categories of this paper are: quant-ph
33
The categories of this paper are: plasm-ph