Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Dynamical Scaling of Matter Density Correlations in the Universe: an
  Application of the Dynamical Renormalization Group   We show how the interplay of non-linear dynamics, self-gravity, and
fluctuations leads to self-affine behavior of matter density correlations quite
generically, i.e., with a power-law exponent whose value does not depend in a
very direct way on the specific details of the dynamics. This we do by means of
the Renormalization Group, a powerful analytic tool for extracting asymptotic
behavior of many-body systems

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The categories of this paper are: eess
1
The categories of this paper are: cs
32
The categories of this paper are: atom-ph
33
The categories of this paper are: plasm-ph
25
The categories of this paper are: patt-sol
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The categories of this paper are: solv-int
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The categories of this paper are: hep-lat
29
The categories of this paper are: funct-an
3
The categories of this paper are: physics
30
The categories of this paper are: q-alg
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The categories of this paper are: cmp-lg
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The categories of this paper are: dg-ga
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The categories of this paper are: supr-con
4
The categories of this paper are: cond-mat
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The categories of this paper are: q-fin
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The categories of this paper are: comp-gas