Noncommutative crepant resolutions of compound A_n singularities via Fukaya categories (Part I)

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• Jonny Evans (Lancaster)
• Thursday 13 March 2025, 11:15-12:15
• CMS, MR14.

If you have a question about this talk, please contact Ailsa Keating.

Please note the unusual time and place.

(This is part I of a series of two talks.) I will explain how to recover some interesting derived categories of coherent sheaves as Fukaya categories of an annulus relative to a collection of marked points. This allows one to see certain features like braid group actions on these categories easily. Slicing the annulus open along a radius also gives a nice A-side description for the derived contraction algebra of a compound A_n singularity. (Joint with YankI Lekili.)

This talk is part of the Differential Geometry and Topology Seminar series.

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