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Skew-group A∞-categories as Fukaya categories of orbifolds

2026/06/02 by Claire Amiot, Pierre-Guy Plamondon, P.-G. Plamondon
Computer Science · #Topological and Geometric Data Analysis #Data Visualization and Analytics

paper · doi:10.1016/j.aim.2026.111064

Abstract

We study the partially wrapped Fukaya category of a surface with boundary with an action of a group of order two. We let the notion of a skew-group A ∞ -category play the role of the partially wrapped Fukaya category of an orbifold surface. We classify indecomposable objects in terms of graded curves with signs, or taggings, at orbifold points. We compute morphisms between a class of objects, and we use this to describe tilting objects and find algebras derived-equivalent to skew-gentle algebras.

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