Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Issue of the Beginning in Quantum Gravity   The goal of this report is to provide an up to date account of results on the
quantum nature of the big bang, obtained in loop quantum cosmology. They
suggest a radical modification of the paradigm provided by general relativity
for the issue of the Beginning. The article is addressed primarily to
historians and philosophers of science.

8
The categories of this paper are: hep-ex
34
The categories of this paper are: chem-ph
17
The categories of this paper are: q-fin
28
The categories of this paper are: alg-geom
20
The categories of this paper are: acc-phys
25
The categories of this paper are: patt-sol
31
The categories of this paper are: ao-sci
14
The categories of this paper are: math-ph
33
The categories of this paper are: plasm-ph
12
The categories of this paper are: nucl-th
35
The categories of this paper are: mtrl-th
27
The categories of this paper are: comp-gas
22
The categories of this paper are: chao-dyn
2
The categories of this paper are: math
30
The categories of this paper are: q-alg
10
The categories of this paper are: q-bio