Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Editorial for the Special Issue "Progress in Group Field Theory and
  Related Quantum Gravity Formalisms"   This Editorial introduces the Special Issue "Progress in Group Field Theory
and Related Quantum Gravity Formalisms" which includes a number of research and
review articles covering results in the group field theory (GFT) formalism for
quantum gravity and in various neighbouring areas of quantum gravity research.
We give a brief overview of the basic ideas of the GFT formalism, list some of
its connections to other fields, and then summarise all contributions to the
Special Issue.

8
The categories of this paper are: hep-ex
6
The categories of this paper are: astro-ph
29
The categories of this paper are: funct-an
36
The categories of this paper are: cmp-lg
28
The categories of this paper are: alg-geom
26
The categories of this paper are: bayes-an
20
The categories of this paper are: acc-phys
3
The categories of this paper are: physics
33
The categories of this paper are: plasm-ph
22
The categories of this paper are: chao-dyn
11
The categories of this paper are: hep-lat
37
The categories of this paper are: supr-con
15
The categories of this paper are: nucl-ex
13
The categories of this paper are: quant-ph
1
The categories of this paper are: cs
17
The categories of this paper are: q-fin