Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Kac-Moody structure of chiral gravity in the light-cone gauge   We study the residual symmetry $SL(2,R)\otimes U(1)$ of the chiral gravity in
the light-cone gauge. Quantum gravitational effects renormalize the Kac-Moody
central charge and introduce, through the Lorentz anomaly, an arbitrary
parameter. Due to the presence of this free parameter the Kac-Moody central
charge has no forbidden range of values, and the strong gravity regime is open
to investigations.

28
The categories of this paper are: alg-geom
0
The categories of this paper are: hep-ph
37
The categories of this paper are: supr-con
26
The categories of this paper are: bayes-an
4
The categories of this paper are: cond-mat
16
The categories of this paper are: stat
2
The categories of this paper are: math
19
The categories of this paper are: eess
21
The categories of this paper are: adap-org
25
The categories of this paper are: patt-sol
36
The categories of this paper are: cmp-lg
10
The categories of this paper are: q-bio
23
The categories of this paper are: solv-int
1
The categories of this paper are: cs
31
The categories of this paper are: ao-sci
30
The categories of this paper are: q-alg