Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Hawking Radiation of Dirac Particles in a Variable-mass Kerr Black Hole   Hawking effect of Dirac particles in a variable-mass Kerr space-time is
investigated by using method of the generalized tortoise coordinate
transformation. The location and the temperature of event horizon of the
non-stationary Kerr black hole are derived. It is shown that the temperature
and the shape of event horizon depend not only on the time but also on the
polar angle. However, our results demonstrate that the Fermi-Dirac spectrum
displays a new spin-rotation effect which is absent from that of Bose-Einstein
distribution.

1
The categories of this paper are: cs
18
The categories of this paper are: econ
36
The categories of this paper are: cmp-lg
13
The categories of this paper are: quant-ph
19
The categories of this paper are: eess
30
The categories of this paper are: q-alg
16
The categories of this paper are: stat
27
The categories of this paper are: comp-gas
14
The categories of this paper are: math-ph
32
The categories of this paper are: atom-ph
2
The categories of this paper are: math
15
The categories of this paper are: nucl-ex
34
The categories of this paper are: chem-ph
22
The categories of this paper are: chao-dyn
28
The categories of this paper are: alg-geom
7
The categories of this paper are: hep-th