Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: 4d neutral dilatonic black holes and (4+p) dimensional nondilatonic
  black p-branes   It is shown that, in contrast to the case of extreme 4d dilatonic black
holes, 4d neutral dilatonic black holes with horizon singularities can not be
interpreted as nonsingular nondilatonic black p-branes in (4+p) dimensions,
regardless of the number of extra dimensions p. That is, extra dimensions do
not remove naked singularities of 4d neutral dilatonic black holes.

20
The categories of this paper are: acc-phys
34
The categories of this paper are: chem-ph
22
The categories of this paper are: chao-dyn
21
The categories of this paper are: adap-org
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The categories of this paper are: eess
0
The categories of this paper are: hep-ph
24
The categories of this paper are: dg-ga
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The categories of this paper are: atom-ph
17
The categories of this paper are: q-fin
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The categories of this paper are: comp-gas
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The categories of this paper are: nucl-th
36
The categories of this paper are: cmp-lg
13
The categories of this paper are: quant-ph
26
The categories of this paper are: bayes-an
35
The categories of this paper are: mtrl-th
1
The categories of this paper are: cs