Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: From Clifton-Barrow spherically symmetric to axially symmetric solution
  in f(R)-gravity   Starting from Clifton's spherical static solution for f(R)-gravity we can
derive axial symmetric solutions using a methods that takes the advantage of a
complex coordinate transformation. The new solutions are generated by applying
the Newman-Janis algorithm previously used to transform any static spherically
symmetric into axially metric in General Relativity

8
The categories of this paper are: hep-ex
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The categories of this paper are: stat
12
The categories of this paper are: nucl-th
14
The categories of this paper are: math-ph
24
The categories of this paper are: dg-ga
19
The categories of this paper are: eess
9
The categories of this paper are: nlin
34
The categories of this paper are: chem-ph
17
The categories of this paper are: q-fin
37
The categories of this paper are: supr-con
3
The categories of this paper are: physics
10
The categories of this paper are: q-bio
25
The categories of this paper are: patt-sol
23
The categories of this paper are: solv-int
36
The categories of this paper are: cmp-lg
27
The categories of this paper are: comp-gas