Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Renormalization of the bilocal sine-Gordon model   The functional renormalization group treatment is presented for the
two-dimensional sine-Gordon model by including a bilocal term in the potential,
which contributes to the flow at tree level. It is shown that the flow of the
bilocal term can substitute the evolution of the wave function renormalization
constant, and then the Kosterlitz-Thouless type phase transition can be
recovered.

21
The categories of this paper are: adap-org
18
The categories of this paper are: econ
17
The categories of this paper are: q-fin
36
The categories of this paper are: cmp-lg
3
The categories of this paper are: physics
32
The categories of this paper are: atom-ph
28
The categories of this paper are: alg-geom
29
The categories of this paper are: funct-an
34
The categories of this paper are: chem-ph
27
The categories of this paper are: comp-gas
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The categories of this paper are: math-ph
26
The categories of this paper are: bayes-an
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The categories of this paper are: mtrl-th
33
The categories of this paper are: plasm-ph
16
The categories of this paper are: stat
22
The categories of this paper are: chao-dyn