Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Asymptotic structure of the Einstein-Maxwell theory on AdS$_{3}$   The asymptotic structure of AdS spacetimes in the context of General
Relativity coupled to the Maxwell field in three spacetime dimensions is
analyzed. Although the fall-off of the fields is relaxed with respect to that
of Brown and Henneaux, the variation of the canonical generators associated to
the asymptotic Killing vectors can be shown to be finite once required to span
the Lie derivative of the fields. The corresponding surface integrals then
acquire explicit contributions from the electromagnetic field, and become
well-defined provided they fulfill suitable integrability conditions, implying
that the leading terms of the asymptotic form of the electromagnetic field are
functionally related. Consequently, for a generic choice of boundary
conditions, the asymptotic symmetries are broken down to $\mathbb{R}\otimes
U\left(1\right)\otimes U\left(1\right)$. Nonetheless, requiring compatibility
of the boundary conditions with one of the asymptotic Virasoro symmetries,
singles out the set to be characterized by an arbitrary function of a single
variable, whose precise form depends on the choice of the chiral copy.
Remarkably, requiring the asymptotic symmetries to contain the full conformal
group selects a very special set of boundary conditions that is labeled by a
unique constant parameter, so that the algebra of the canonical generators is
given by the direct sum of two copies of the Virasoro algebra with the standard
central extension and $U\left(1\right)$. This special set of boundary
conditions makes the energy spectrum of electrically charged rotating black
holes to be well-behaved.

11
The categories of this paper are: hep-lat
26
The categories of this paper are: bayes-an
34
The categories of this paper are: chem-ph
32
The categories of this paper are: atom-ph
1
The categories of this paper are: cs
22
The categories of this paper are: chao-dyn
13
The categories of this paper are: quant-ph
3
The categories of this paper are: physics
15
The categories of this paper are: nucl-ex
12
The categories of this paper are: nucl-th
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The categories of this paper are: cmp-lg
6
The categories of this paper are: astro-ph
16
The categories of this paper are: stat
17
The categories of this paper are: q-fin
31
The categories of this paper are: ao-sci
25
The categories of this paper are: patt-sol