Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The BMS-like symmetry of extremal horizons   I revisit the calculation of infinite-dimensional symmetries that emerge in
the vicinity of isolated horizons. I focus the attention on extremal black
holes, for which the isometry algebra that preserves a sensible set of
asymptotic boundary conditions at the horizon strictly includes the BMS
algebra. The conserved charges that correspond to this BMS sector, however,
reduce to those of superrotation, generating only two copies of Witt algebra.
For more general horizon isometries, in contrast, the charge algebra does
include both Witt and supertranslations, being similar to BMS but s.str.
differing from it.
  This work has been prepared for the proceedings of the XXII Simposio Sofichi
2020, held in Chile in November 2020. The material herein is based on my work
in collaboration with Laura Donnay, Hernan Gonzalez and Miguel Pino, and it is
included in arXiv:1511.08687 and arXiv:1607.05703.

35
The categories of this paper are: mtrl-th
2
The categories of this paper are: math
28
The categories of this paper are: alg-geom
21
The categories of this paper are: adap-org
26
The categories of this paper are: bayes-an
31
The categories of this paper are: ao-sci
30
The categories of this paper are: q-alg
20
The categories of this paper are: acc-phys
0
The categories of this paper are: hep-ph
16
The categories of this paper are: stat
27
The categories of this paper are: comp-gas
8
The categories of this paper are: hep-ex
33
The categories of this paper are: plasm-ph
36
The categories of this paper are: cmp-lg
19
The categories of this paper are: eess
9
The categories of this paper are: nlin