Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Energy distribution in the dyadosphere of a charged black hole   The event horizon of a charged black hole is, according to
Ruffini\cite{Ruffini} and Preparata \emph{et al.}\cite{PreparataEtAl},
surrounded by a special region called the \emph{dyadosphere} where the
electromagnetic field exceeds the Euler-Heisenberg critical value for
electron-positron pair production. We obtain the energy distribution in the
dyadosphere region for a Reissner-Nordstr\"{o}m black hole. We find that the
energy-momentum prescriptions of Einstein, Landau-Lifshitz, Papapetrou, and
Weinberg give the same and acceptable energy distribution.

37
The categories of this paper are: supr-con
2
The categories of this paper are: math
28
The categories of this paper are: alg-geom
10
The categories of this paper are: q-bio
19
The categories of this paper are: eess
11
The categories of this paper are: hep-lat
17
The categories of this paper are: q-fin
18
The categories of this paper are: econ
36
The categories of this paper are: cmp-lg
14
The categories of this paper are: math-ph
8
The categories of this paper are: hep-ex
9
The categories of this paper are: nlin
1
The categories of this paper are: cs
15
The categories of this paper are: nucl-ex
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The categories of this paper are: mtrl-th
27
The categories of this paper are: comp-gas