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arXiv · 2607.24158

Namikawa--Weyl groups of symplectic quotient singularities

Gwyn Bellamy·Gerhard Röhrle·Johannes Schmitt
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Abstract

We classify the Namikawa--Weyl groups associated to symplectic quotient singularities $V/G$ when $G$ is a symplectic reflection group. Our classification shows that every irreducible Weyl group can be realized as a factor of the Namikawa--Weyl group of $V/G$ for a suitable $G$.

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Gwyn Bellamy, Gerhard Röhrle, Johannes Schmitt. 2026-07-27. Namikawa--Weyl groups of symplectic quotient singularities. https://arxiv.org/abs/2607.24158

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