Equivariant volumes of non-compact quotients and instanton counting

Preprint English OPEN
Martens, Johan;
  • Identifiers: doi: 10.1007/s00220-008-0501-x
  • Subject: Mathematics - Symplectic Geometry | 53Z05 | 53D20 | High Energy Physics - Theory | Mathematics - Algebraic Geometry
    arxiv: High Energy Physics::Theory | Mathematics::Symplectic Geometry

Motivated by Nekrasov's instanton counting, we discuss a method for calculating equivariant volumes of non-compact quotients in symplectic and hyper-K\"ahler geometry by means of the Jeffrey-Kirwan residue-formula of non-abelian localization. In order to overcome the no... View more
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