Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Loop and surface operators in N=2 gauge theory and Liouville modular
  geometry   Recently, a duality between Liouville theory and four dimensional N=2 gauge
theory has been uncovered by some of the authors. We consider the role of
extended objects in gauge theory, surface operators and line operators, under
this correspondence. We map such objects to specific operators in Liouville
theory. We employ this connection to compute the expectation value of general
supersymmetric 't Hooft-Wilson line operators in a variety of N=2 gauge
theories.

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The categories of this paper are: math
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The categories of this paper are: supr-con
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The categories of this paper are: physics
32
The categories of this paper are: atom-ph
24
The categories of this paper are: dg-ga
29
The categories of this paper are: funct-an
35
The categories of this paper are: mtrl-th
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The categories of this paper are: quant-ph
18
The categories of this paper are: econ
11
The categories of this paper are: hep-lat
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The categories of this paper are: q-fin
14
The categories of this paper are: math-ph
33
The categories of this paper are: plasm-ph
19
The categories of this paper are: eess
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The categories of this paper are: cond-mat
34
The categories of this paper are: chem-ph