Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Puzzling aspects of hot quantum fields   Over the past decade, Finite Temperature Quantum Field Theories have
benefitted from impressive developments, while an increasing number of
intriguing points were made. Some of them are presented here, recent and older,
in a non exhaustive list.

24
The categories of this paper are: dg-ga
18
The categories of this paper are: econ
16
The categories of this paper are: stat
30
The categories of this paper are: q-alg
20
The categories of this paper are: acc-phys
2
The categories of this paper are: math
19
The categories of this paper are: eess
25
The categories of this paper are: patt-sol
28
The categories of this paper are: alg-geom
35
The categories of this paper are: mtrl-th
1
The categories of this paper are: cs
17
The categories of this paper are: q-fin
32
The categories of this paper are: atom-ph
11
The categories of this paper are: hep-lat
36
The categories of this paper are: cmp-lg
8
The categories of this paper are: hep-ex