Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Topological Field Theory Interpretations and LG Representation of c=1
  String Theory   We analyze the topological nature of $c=1$ string theory at the self--dual
radius. We find that it admits two distinct topological field theory structures
characterized by two different puncture operators. We show it first in the
unperturbed theory in which the only parameter is the cosmological constant,
then in the presence of any infinitesimal tachyonic perturbation. We also
discuss in detail a Landau--Ginzburg representation of one of the two
topological field theory structures.

36
The categories of this paper are: cmp-lg
6
The categories of this paper are: astro-ph
10
The categories of this paper are: q-bio
32
The categories of this paper are: atom-ph
4
The categories of this paper are: cond-mat
17
The categories of this paper are: q-fin
16
The categories of this paper are: stat
1
The categories of this paper are: cs
25
The categories of this paper are: patt-sol
24
The categories of this paper are: dg-ga
11
The categories of this paper are: hep-lat
30
The categories of this paper are: q-alg
26
The categories of this paper are: bayes-an
23
The categories of this paper are: solv-int
19
The categories of this paper are: eess
12
The categories of this paper are: nucl-th