Calabi-Yau techniques for Namikawa-Weyl groups

Fuente: arXiv
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Main Author: van de Kreeke, Jasper
Format: Preprint
Published: 2025
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author van de Kreeke, Jasper
author_facet van de Kreeke, Jasper
contents The field of symplectic singularities aims to build a 21st century Lie theory. A key development is the Namikawa-Weyl group, which generalizes the classical Weyl group of Lie algebras. Another cornerstone is the integration of categorical Calabi-Yau techniques, capturing the rich algebraic structure of these singularities. In this paper, we develop a systematic strategy to determine Namikawa-Weyl groups for representation spaces of Calabi-Yau-2 algebras, leveraging local-to-global functors, symmetry analysis, and $ A_{\infty} $-methods. Applying this approach to quiver varieties, we carry out the detailed calculations and recover Yaochen Wu's result.
format Preprint
id arxiv_https___arxiv_org_abs_2501_03198
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Calabi-Yau techniques for Namikawa-Weyl groups
van de Kreeke, Jasper
Representation Theory
Algebraic Geometry
Symplectic Geometry
16G20 (Primary) 14J42, 53D30 (Secondary)
The field of symplectic singularities aims to build a 21st century Lie theory. A key development is the Namikawa-Weyl group, which generalizes the classical Weyl group of Lie algebras. Another cornerstone is the integration of categorical Calabi-Yau techniques, capturing the rich algebraic structure of these singularities. In this paper, we develop a systematic strategy to determine Namikawa-Weyl groups for representation spaces of Calabi-Yau-2 algebras, leveraging local-to-global functors, symmetry analysis, and $ A_{\infty} $-methods. Applying this approach to quiver varieties, we carry out the detailed calculations and recover Yaochen Wu's result.
title Calabi-Yau techniques for Namikawa-Weyl groups
topic Representation Theory
Algebraic Geometry
Symplectic Geometry
16G20 (Primary) 14J42, 53D30 (Secondary)
url https://arxiv.org/abs/2501.03198