Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: 4d/3d reduction of s-confining theories: the role of the "exotic" D
  instantons   In the reduction of 4d dualities to 3d there are non-perturbative effects
arising from monopoles acting as instantons. This mechanism has been reproduced
in string theory by engineering the theories in a IIA brane setup. Nevertheless
there are limiting cases of the 4d dualities where the dual theories are
actually confined phases of the UV gauge theories. In these cases the monopoles
are absent and the mechanism of reduction of the 4d duality has to be modified.
In this paper we investigate such modification in the brane setup. The main
observation behind our analysis is that in the 4d case the superpotential of
the confined theories can been obtained also as the "exotic" contribution of a
D0 brane, a stringy instanton. When considering these configurations we
reproduce the field theory results in the brane setup. We study both the
unitary and the symplectic case. As a further check we study the reduction of
the 4d superconformal index to the 3d partition function for these theories.

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The categories of this paper are: cmp-lg
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The categories of this paper are: q-alg
2
The categories of this paper are: math
6
The categories of this paper are: astro-ph
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The categories of this paper are: patt-sol
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The categories of this paper are: alg-geom
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The categories of this paper are: atom-ph
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The categories of this paper are: chem-ph
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The categories of this paper are: plasm-ph
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The categories of this paper are: acc-phys
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The categories of this paper are: solv-int
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The categories of this paper are: stat
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The categories of this paper are: nlin
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The categories of this paper are: nucl-th
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The categories of this paper are: econ
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The categories of this paper are: supr-con