Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Moduli spaces of meromorphic connections and quiver varieties   We describe the moduli spaces of meromorphic connections on trivial
holomorphic vector bundles over the Riemann sphere with at most one
(unramified) irregular singularity and arbitrary number of simple poles as
Nakajima's quiver varieties. This result enables us to solve partially the
additive irregular Deligne-Simpson problem.

18
The categories of this paper are: econ
29
The categories of this paper are: funct-an
16
The categories of this paper are: stat
33
The categories of this paper are: plasm-ph
27
The categories of this paper are: comp-gas
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The categories of this paper are: dg-ga
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The categories of this paper are: eess
30
The categories of this paper are: q-alg
31
The categories of this paper are: ao-sci
17
The categories of this paper are: q-fin
7
The categories of this paper are: hep-th
32
The categories of this paper are: atom-ph
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The categories of this paper are: hep-lat
10
The categories of this paper are: q-bio
1
The categories of this paper are: cs
9
The categories of this paper are: nlin