Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Nonperturbative Effect in c=1 Noncritical String Theory and Penner Model   We derive the effect of instantons in the Penner model. It is known that the
free energies of the Penner model and the c=1 noncritical string at self-dual
radius agree in a suitable double scaling limit. On the other hand, the
instanton in the matrix model describes a nonperturbative effect in the
noncritical string theory. We study the correspondence between the instantons
in the Penner model and the nonperturbative effect in c=1 noncritical string at
self-dual radius.

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The categories of this paper are: math-ph
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The categories of this paper are: plasm-ph
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The categories of this paper are: econ
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The categories of this paper are: nucl-th
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The categories of this paper are: patt-sol
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The categories of this paper are: hep-ex
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The categories of this paper are: funct-an
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The categories of this paper are: cmp-lg
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The categories of this paper are: hep-lat
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The categories of this paper are: q-bio
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The categories of this paper are: chem-ph
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The categories of this paper are: atom-ph
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The categories of this paper are: nucl-ex
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The categories of this paper are: q-alg
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The categories of this paper are: acc-phys
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The categories of this paper are: eess