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arXiv · 2208.09359

Singular Quiver Varieties over Extended Dynkin Quivers

Gard Olav Helle
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Abstract

We classify the singularities in the unframed Nakajima quiver varieties associated with extended Dynkin quivers and the corresponding minimal imaginary root with a small restriction on the parameter and use this to construct a number of hyper-K\"{a}hler cobordisms between binary polyhedral spaces.

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Gard Olav Helle. 2022-08-19. Singular Quiver Varieties over Extended Dynkin Quivers. https://arxiv.org/abs/2208.09359

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