Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the Fractal Structure of the Universe   Despite the observational evidence that the Universe appears hierarchically
structured up to a distance of at least 30 Mpc/h (and possibly up to 100
Mpc/h), the fractal paradigm has not yet been recognized by the majority of
cosmologists today. In this work we provide a brief overview of the recent
observational and theoretical advances relevant to the question of the global
cosmic structure and present some simple calculations which indicate how the
hierarchical structure may pass over to the homogeneous Universe at very large
scale. We show that the fractal structure may be derived from the moderately
nonuniform matter distribution. We address a number of epistemological
questions relevant to a general outlook of the Cosmos at large too.

25
The categories of this paper are: patt-sol
4
The categories of this paper are: cond-mat
0
The categories of this paper are: hep-ph
17
The categories of this paper are: q-fin
2
The categories of this paper are: math
23
The categories of this paper are: solv-int
24
The categories of this paper are: dg-ga
27
The categories of this paper are: comp-gas
11
The categories of this paper are: hep-lat
31
The categories of this paper are: ao-sci
28
The categories of this paper are: alg-geom
18
The categories of this paper are: econ
20
The categories of this paper are: acc-phys
22
The categories of this paper are: chao-dyn
33
The categories of this paper are: plasm-ph
16
The categories of this paper are: stat