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DATE | 2016-08-29 14:10-15:10 |

PLACE | 數學館3177教室 |

SPEAKER | Ryo Okawa 博士（京都大學 數理解析研究所） |

TITLE | Instanton Counting on the Minimal Resolution of the A_1 Singularity |

ABSTRACT | In this talk, we consider different versions of Nekrasov partition functions.These are generating functions of integrations over moduli of framed sheaves on resolutions of the A_1 singularity. We consider two resolutions, the minimal resolution and the stacky resolution, that is, the quotient stack of the projective plane by the cyclic group of order 2. I will show functional equations between Nekrasov partition functions defined from these two resolutions. This is a kind of McKay correspondence. |