Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Gravitational radiation fields in teleparallel equivalent of general
  relativity and their energies   We derive two new retarded solutions in the teleparallel theory equivalent to
general relativity (TEGR). One of these solutions gives a divergent energy.
Therefore, we used the regularized expression of the gravitational
energy-momentum tensor, which is a coordinate dependent. A detailed analysis of
the loss of the mass of Bondi space-time is carried out using the flux of the
gravitational energy-momentum.

29
The categories of this paper are: funct-an
15
The categories of this paper are: nucl-ex
13
The categories of this paper are: quant-ph
17
The categories of this paper are: q-fin
3
The categories of this paper are: physics
37
The categories of this paper are: supr-con
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
25
The categories of this paper are: patt-sol
12
The categories of this paper are: nucl-th
6
The categories of this paper are: astro-ph
11
The categories of this paper are: hep-lat
24
The categories of this paper are: dg-ga
7
The categories of this paper are: hep-th