Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Topological Mass Generation in Three-Dimensional String Theory   The effective action of string theory in three dimensions is investigated,
incorporating the Lorentz and gauge Chern-Simons terms in the definition of the
Kalb-Ramond axion field strength. Since in three dimensions any three-form is
trivial, the action can be reformulated by properly integrating the axion out.
The circumstances under which it can be recast in form of topologically massive
gravity coupled to a topologically massive gauge theory are pointed out.
Finally, the strong coupling limit of the resulting action is inspected, with
the focus on the roles played by the axion and dilaton fields.

1
The categories of this paper are: cs
2
The categories of this paper are: math
31
The categories of this paper are: ao-sci
33
The categories of this paper are: plasm-ph
26
The categories of this paper are: bayes-an
24
The categories of this paper are: dg-ga
25
The categories of this paper are: patt-sol
36
The categories of this paper are: cmp-lg
34
The categories of this paper are: chem-ph
19
The categories of this paper are: eess
23
The categories of this paper are: solv-int
0
The categories of this paper are: hep-ph
17
The categories of this paper are: q-fin
20
The categories of this paper are: acc-phys
29
The categories of this paper are: funct-an
32
The categories of this paper are: atom-ph