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Related papers: Relative Fukaya Categories via Gentle Algebras

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We give a complete description of the A$_\infty$ deformation theory of partially wrapped Fukaya categories of graded surfaces. We show that any abstract A$_\infty$ deformation is "geometric", namely it is equivalent to the partially wrapped…

Symplectic Geometry · Mathematics 2025-12-19 Severin Barmeier , Sibylle Schroll , Zhengfang Wang

We give an introduction to partially wrapped Fukaya categories of surfaces with orbifold singularities. Dissecting an orbifold surface $\mathbf S$ into polygons, certain dissections give rise to formal generators, inducing a triangulated…

Representation Theory · Mathematics 2026-02-20 Severin Barmeier , Zhengfang Wang

The Fukaya category of a punctured surface can be reconstructed from a pair-of-pants decomposition using a formal construction that attaches a category to a trivalent graph. We extend this formal construction to include a choice of line…

Algebraic Geometry · Mathematics 2021-06-11 Ed Segal

In this paper we study the localization of a derived category of a graded gentle algebra by a subcategory generated by a spherical band object. This object corresponds to a simple closed curve under the equivalence between the perfect…

Representation Theory · Mathematics 2025-01-27 Pierre Bodin

In this paper we establish a version of homological mirror symmetry for punctured Riemann surfaces. Following a proposal of Kontsevich we model A-branes on a punctured surface $\Sigma$ via the topological Fukaya category. We prove that the…

Algebraic Topology · Mathematics 2019-03-27 James Pascaleff , Nicolò Sibilla

We compute the derived Picard groups of partially wrapped Fukaya categories of surfaces in the sense of Haiden-Katzarkov-Kontsevich and the related graded gentle algebras. This includes the wrapped cases as introduced by Bocklandt. An…

Representation Theory · Mathematics 2026-02-09 Sebastian Opper

Mirror symmetry originally envisions a correspondence between deformations of the A-side and deformations of the B-side. In this paper, we achieve an explicit correspondence in the case of punctured surfaces. The starting point is the…

Algebraic Geometry · Mathematics 2025-01-08 Raf Bocklandt , Jasper van de Kreeke

In this paper we use recollements to investigate partially wrapped Fukaya categories of surfaces with marked points. In particular, we show that cutting surfaces gives rise to recollements of the corresponding partially wrapped Fukaya…

Representation Theory · Mathematics 2023-04-04 Wen Chang , Haibo Jin , Sibylle Schroll

Following the approach of Haiden-Katzarkov-Kontsevich arXiv:1409.8611, to any homologically smooth graded gentle algebra $A$ we associate a triple $(\Sigma_A, \Lambda_A; \eta_A)$, where $\Sigma_A$ is an oriented smooth surface with…

Symplectic Geometry · Mathematics 2019-08-28 Yanki Lekili , Alexander Polishchuk

We study the partially wrapped Fukaya category of a surface with boundary with an action of a group of order two. Inspired by skew-group algebras and categories, we define the notion of a skew-group $A_\infty$-category and let it play the…

Representation Theory · Mathematics 2026-05-21 Claire Amiot , Pierre-Guy Plamondon

To paraphrase, part I constructs a bundle of $A _{\infty}$ categories given the input of a Hamiltonian fibration over a smooth manifold. Here we show that this bundle is generally non-trivial by a sample computation. One principal…

Symplectic Geometry · Mathematics 2025-05-27 Yasha Savelyev

Seidel introduced the notion of a Fukaya category `relative to an ample divisor', explained that it is a deformation of the Fukaya category of the affine variety that is the complement of the divisor, and showed how the relevant deformation…

Symplectic Geometry · Mathematics 2020-09-30 Nick Sheridan

We give a definition of Seidel's `relative Fukaya category', for a smooth complex projective variety, under a semipositivity assumption. We use the Cieliebak--Mohnke approach to transversality via stabilizing divisors. Two features of our…

Symplectic Geometry · Mathematics 2023-04-04 Timothy Perutz , Nick Sheridan

Recently Abouzaid, Auroux, Efimov, Katzarkov and Orlov showed that the wrapped Fukaya Categories of punctured spheres and finite unbranched covers of punctured spheres are derived equivalent to the categories of singularities of a…

Algebraic Geometry · Mathematics 2013-11-13 Raf Bocklandt

Geometric models have emerged as an important tool in the representation theory of algebras. Surface models associated to gentle algebras have been particularly fruitful in advancing our understanding of their module and derived categories.…

Representation Theory · Mathematics 2026-01-22 Sibylle Schroll

We describe the (bigraded) Hochschild cohomology of graded gentle algebras along with the Gerstenhaber bracket and cup product. In particular, this yields a description of the Hochschild cohomology of partially wrapped Fukaya categories of…

Representation Theory · Mathematics 2026-01-12 Sebastian Opper

We construct the Fukaya category of a closed surface equipped with an area form using only elementary (essentially combinatorial) methods. We also compute the Grothendieck group of its derived category.

Symplectic Geometry · Mathematics 2007-08-30 Mohammed Abouzaid

The paper is devoted to the comparison of the Fukaya category (it is responcible for the A-side of mirror symmetry) with the category of holonomic modules over the quantized algebra of functions on the same symplectic manifold. We…

High Energy Physics - Theory · Physics 2007-05-23 Paul Bressler , Yan Soibelman

Given an immersion of a circle in a punctured surface $\Sigma$, we give an explicit (and finite) computation of the $A_\infty$-algebra associated with this curve when viewed as an object in a (relative) Fukaya category of $\Sigma$ in terms…

Symplectic Geometry · Mathematics 2026-05-12 Yanki Lekili

We confirm a conjecture by Lekili and Polishchuk that the geometric invariants which they construct for homologically smooth graded (not necessarily proper) gentle algebras form a complete derived invariant. Hence, we obtain a complete…

Representation Theory · Mathematics 2025-03-21 Haibo Jin , Sibylle Schroll , Zhengfang Wang
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