Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Structural preferential attachment: Stochastic process for the growth of
  scale-free, modular and self-similar systems   Many complex systems have been shown to share universal properties of
organization, such as scale independence, modularity and self-similarity. We
borrow tools from statistical physics in order to study structural preferential
attachment (SPA), a recently proposed growth principle for the emergence of the
aforementioned properties. We study the corresponding stochastic process in
terms of its time evolution, its asymptotic behavior and the scaling properties
of its statistical steady state. Moreover, approximations are introduced to
facilitate the modelling of real systems, mainly complex networks, using SPA.
Finally, we investigate a particular behavior observed in the stochastic
process, the peloton dynamics, and show how it predicts some features of real
growing systems using prose samples as an example.

2
The categories of this paper are: math
0
The categories of this paper are: hep-ph
29
The categories of this paper are: funct-an
37
The categories of this paper are: supr-con
26
The categories of this paper are: bayes-an
5
The categories of this paper are: gr-qc
32
The categories of this paper are: atom-ph
34
The categories of this paper are: chem-ph
11
The categories of this paper are: hep-lat
12
The categories of this paper are: nucl-th
18
The categories of this paper are: econ
13
The categories of this paper are: quant-ph
1
The categories of this paper are: cs
30
The categories of this paper are: q-alg
33
The categories of this paper are: plasm-ph
16
The categories of this paper are: stat