Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Localisations of cobordism categories and invertible TFTs in dimension
  two   Cobordism categories have played an important role in classical geometry and
more recently in mathematical treatments of quantum field theory. Here we will
compute localisations of two-dimensional discrete cobordism categories. This
allows us, up to equivalence, to determine the category of invertible
two-dimensional topological field theories in the sense of Atiyah. We are able
to treat the orientable, non-orientable, closed and open cases.

21
The categories of this paper are: adap-org
4
The categories of this paper are: cond-mat
27
The categories of this paper are: comp-gas
0
The categories of this paper are: hep-ph
36
The categories of this paper are: cmp-lg
7
The categories of this paper are: hep-th
33
The categories of this paper are: plasm-ph
31
The categories of this paper are: ao-sci
34
The categories of this paper are: chem-ph
15
The categories of this paper are: nucl-ex
26
The categories of this paper are: bayes-an
25
The categories of this paper are: patt-sol
8
The categories of this paper are: hep-ex
24
The categories of this paper are: dg-ga
28
The categories of this paper are: alg-geom
3
The categories of this paper are: physics