Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Topological sectors for Weyl-algebra net in the Einstein cylindrical
  universe   This paper is an extended and more detailed version of arXiv:0812.0533. We
tackle the problem of constructing explicit examples of topological cocycles of
Roberts' net cohomology, as defined abstractly by Brunetti and Ruzzi. We
consider the simple case of massive bosonic quantum field theory on the two
dimensional Einstein cylinder. After deriving some crucial results of the
algebraic framework of quantization, we address the problem of the construction
of the topological cocycles. All constructed cocycles lead to unitarily
equivalent representations of the fundamental group of the circle (seen as a
diffeomorphic image of all possible Cauchy surfaces).

16
The categories of this paper are: stat
23
The categories of this paper are: solv-int
19
The categories of this paper are: eess
27
The categories of this paper are: comp-gas
10
The categories of this paper are: q-bio
34
The categories of this paper are: chem-ph
12
The categories of this paper are: nucl-th
22
The categories of this paper are: chao-dyn
36
The categories of this paper are: cmp-lg
33
The categories of this paper are: plasm-ph
28
The categories of this paper are: alg-geom
15
The categories of this paper are: nucl-ex
0
The categories of this paper are: hep-ph
6
The categories of this paper are: astro-ph
1
The categories of this paper are: cs
32
The categories of this paper are: atom-ph