Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Refined matrix models from BPS counting   We construct a free fermion and matrix model representation of refined BPS
generating functions of D2 and D0 branes bound to a single D6 brane, in a class
of toric manifolds without compact four-cycles. In appropriate limit we obtain
a matrix model representation of refined topological string amplitudes. We
consider a few explicit examples which include a matrix model for the refined
resolved conifold, or equivalently five-dimensional U(1) gauge theory, as well
as a matrix representation of the refined MacMahon function. Matrix models
which we construct have ordinary unitary measure, while their potentials are
modified to incorporate the effect of the refinement.

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The categories of this paper are: bayes-an
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The categories of this paper are: cmp-lg
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The categories of this paper are: dg-ga
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The categories of this paper are: comp-gas
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The categories of this paper are: q-alg
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The categories of this paper are: nlin
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The categories of this paper are: q-bio
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The categories of this paper are: q-fin
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The categories of this paper are: physics
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The categories of this paper are: mtrl-th
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The categories of this paper are: astro-ph
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The categories of this paper are: acc-phys
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The categories of this paper are: plasm-ph
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The categories of this paper are: adap-org
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The categories of this paper are: supr-con
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The categories of this paper are: chem-ph