Journal
ADVANCES IN MATHEMATICS
Volume 266, Issue -, Pages 120-151Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.aim.2014.05.024
Keywords
Moduli spaces of meromorphic connections; Quiver varieties; Additive irregular Deligne-Simpson problem
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Funding
- JSPS [2680072, 24740104]
- Grants-in-Aid for Scientific Research [26800072, 24740104] Funding Source: KAKEN
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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. (C) 2014 Elsevier Inc. All rights reserved.
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