Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: D-brane instantons and matrix models   We point out that in some situations it is possible to use matrix model
techniques a la Dijkgraaf-Vafa to perturbatively compute D-brane instanton
effects. This provides an explanation in terms of stringy instantons of the
results in hep-th/0311181. We check this proposal in some simple scenarios. We
point out some interesting consequences of this observation, such as the fact
that it gives a perturbative way of computing stringy multi-instanton effects.
It also provides a further interpretation of D-brane instantons as residual
instantons of higgsed supergroups.

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The categories of this paper are: ao-sci
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The categories of this paper are: hep-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: funct-an
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The categories of this paper are: hep-lat
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The categories of this paper are: solv-int
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The categories of this paper are: dg-ga
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The categories of this paper are: astro-ph
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The categories of this paper are: chem-ph
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The categories of this paper are: econ
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The categories of this paper are: gr-qc
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The categories of this paper are: nucl-ex
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The categories of this paper are: q-bio
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The categories of this paper are: stat
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The categories of this paper are: atom-ph
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The categories of this paper are: q-alg