Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: 5d gauge theories on orbifolds and 4d 't Hooft line indices   We study indices for 5d gauge theories on S^1 \times S^4/Z_n. In the large
orbifold limit, n \rightarrow \infty, we find evidence that the indices become
4d indices in the presence of a 't Hooft line operator. The non-perturbative
part of the index poses some subtleties when being compared to the 4d monopole
bubbling which happens in the presence of 't Hooft line operators. We study
such monopole bubbling indices and find an interesting connection to the
Hilbert series of the moduli space of instantons on an auxiliary ALE space.

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The categories of this paper are: supr-con
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The categories of this paper are: atom-ph
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The categories of this paper are: quant-ph
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The categories of this paper are: hep-ph
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The categories of this paper are: q-alg
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The categories of this paper are: cmp-lg
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The categories of this paper are: gr-qc
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The categories of this paper are: q-bio
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The categories of this paper are: alg-geom
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The categories of this paper are: chem-ph
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The categories of this paper are: patt-sol
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The categories of this paper are: adap-org
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The categories of this paper are: cs
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The categories of this paper are: comp-gas
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The categories of this paper are: eess
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The categories of this paper are: q-fin