Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Rotating Charged Black Hole Solution in Heterotic String Theory   We construct a solution of the classical equations of motion arising in the
low energy effective field theory for heterotic string theory. This solution
describes a black hole in four dimensions carrying mass $M$, charge $Q$ and
angular momentum $J$. The extremal limit of the solution is discussed.

25
The categories of this paper are: patt-sol
1
The categories of this paper are: cs
31
The categories of this paper are: ao-sci
18
The categories of this paper are: econ
28
The categories of this paper are: alg-geom
36
The categories of this paper are: cmp-lg
8
The categories of this paper are: hep-ex
9
The categories of this paper are: nlin
16
The categories of this paper are: stat
15
The categories of this paper are: nucl-ex
17
The categories of this paper are: q-fin
6
The categories of this paper are: astro-ph
24
The categories of this paper are: dg-ga
26
The categories of this paper are: bayes-an
14
The categories of this paper are: math-ph
2
The categories of this paper are: math