Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Sources of CMB Spots in Closed Hyperbolic Universes   The results of a previous paper by the author [Astrophys. J. 470, 43 (1996)
are improved, through a more reliable technique for finding the location of
sources whose images are on the surface of last scattering.

27
The categories of this paper are: comp-gas
19
The categories of this paper are: eess
29
The categories of this paper are: funct-an
7
The categories of this paper are: hep-th
18
The categories of this paper are: econ
24
The categories of this paper are: dg-ga
14
The categories of this paper are: math-ph
10
The categories of this paper are: q-bio
15
The categories of this paper are: nucl-ex
31
The categories of this paper are: ao-sci
22
The categories of this paper are: chao-dyn
30
The categories of this paper are: q-alg
1
The categories of this paper are: cs
21
The categories of this paper are: adap-org
20
The categories of this paper are: acc-phys
25
The categories of this paper are: patt-sol