Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Instability of the extreme Kerr-Newman black-holes   Using black-hole inequalities and the increase of the horizon's areas, we
show that there are arbitrarily small electro-vacuum perturbations of the
standard initial data of the extreme Reissner-Nordstrom black-hole that, (by
contradiction), cannot decay in time into any extreme Kerr-Newman black-hole.
This proves the expectation that the family of extreme Kerr-Newman black-holes
is unstable. It remains of course to be seen whether the whole family of
charged black-holes, including those extremes, is stable or not.

29
The categories of this paper are: funct-an
18
The categories of this paper are: econ
30
The categories of this paper are: q-alg
22
The categories of this paper are: chao-dyn
12
The categories of this paper are: nucl-th
8
The categories of this paper are: hep-ex
23
The categories of this paper are: solv-int
17
The categories of this paper are: q-fin
35
The categories of this paper are: mtrl-th
9
The categories of this paper are: nlin
27
The categories of this paper are: comp-gas
25
The categories of this paper are: patt-sol
11
The categories of this paper are: hep-lat
24
The categories of this paper are: dg-ga
10
The categories of this paper are: q-bio
16
The categories of this paper are: stat