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Math-Physics Joint Seminar

Thursday, April 13, 2017 - 4:30pm

Hiraku Nakajima

Kyoto University


University of Pennsylvania


Bow varieties were introduced by Cherkis as analog of ADHM
type description of instanton moduli spaces on the Taub-NUT space
(C2 with a hyper-Kaehler metric, not a Euclidean one.) We
study these varieties from a more algebro-geometric point of view, and introduce their `multiplicative' analog. Applications are their
identifications with Coulomb branches of 3d and 4d gauge theories

The first part is joint work with Y. Takayama, while the second is with D. Yamakawa.

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