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arXiv · 1207.5658

Virasoro constraint for Nekrasov instanton partition function

Shoichi Kanno·Yutaka Matsuo·Hong Zhang
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Abstract

We show that Nekrasov instanton partition function for SU(N) gauge theories satisfies recursion relations in the form of U(1)+Virasoro constraints when β = 1. The constraints give a direct support for AGT conjecture for general quiver gauge theories.

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Shoichi Kanno, Yutaka Matsuo, Hong Zhang. 2012-08-01. Virasoro constraint for Nekrasov instanton partition function. https://doi.org/10.1007/jhep10(2012)097

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