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We derive constraints on Lagrangian embeddings in completions of certain stable symplectic fillings with semisimple symplectic cohomologies. Manifolds with these properties can be constructed by generalizing the boundary connected sum…

Symplectic Geometry · Mathematics 2020-11-11 Yin Li

In this paper, we 'construct' a 2-functor from the unobstructed immersed Weinstein category to the category of all filtered $A_{\infty}$ categories. We consider arbitrary (compact) symplectic manifolds and its arbitrary (relatively spin)…

Symplectic Geometry · Mathematics 2025-04-30 Kenji Fukaya

We revisit Vafa-Witten theory in the more general setting whereby the underlying moduli space is not that of instantons, but of the full Vafa-Witten equations. We physically derive (i) a novel Vafa-Witten four-manifold invariant associated…

High Energy Physics - Theory · Physics 2024-11-01 Zhi-Cong Ong , Meng-Chwan Tan

We construct Lagrangian sections of a Lagrangian torus fibration on a 3-dimensional conic bundle, which are SYZ dual to holomorphic line bundles over the mirror toric Calabi-Yau 3-fold. We then demonstrate a ring isomorphism between the…

Symplectic Geometry · Mathematics 2016-08-18 Kwokwai Chan , Daniel Pomerleano , Kazushi Ueda

We provide a construction of equivariant Lagrangian Floer homology $HF_G(L_0, L_1)$, for a compact Lie group $G$ acting on a symplectic manifold $M$ in a Hamiltonian fashion, and a pair of $G$-Lagrangian submanifolds $L_0, L_1 \subset M$.…

Symplectic Geometry · Mathematics 2024-03-14 Guillem Cazassus

Given a symplectic manifold equipped with a Hamiltonian $G$-action and two $G$-invariant Lagrangians, we lift the construction of equivariant Lagrangian Floer homology of G.\@~Cazassus to the Novikov ring by constructing a ``quantum'' model…

Symplectic Geometry · Mathematics 2025-05-06 Julio Sampietro Christ

Given an arbitrary graph $\Gamma$ and non-negative integers $g_v$ for each vertex $v$ of $\Gamma$, let $X_\Gamma$ be the Weinstein $4$-manifold obtained by plumbing copies of $T^*\Sigma_v$ according to this graph, where $\Sigma_v$ is a…

Symplectic Geometry · Mathematics 2018-10-15 Tolga Etgü , Yanki Lekili

To a conical symplectic resolution with Hamiltonian torus action, Braden--Proudfoot--Licata--Webster associate a category O, defined using deformation quantization (DQ) modules. It has long been expected, though not stated precisely in the…

Symplectic Geometry · Mathematics 2024-07-03 Laurent Côté , Benjamin Gammage , Justin Hilburn

Given a Hamiltonian torus action on a symplectic manifold, Teleman and Fukaya have proposed that the Fukaya category of each symplectic quotient should be equivalent to an equivariant Fukaya category of the original manifold. We lay out new…

Symplectic Geometry · Mathematics 2023-04-24 Yanki Lekili , Ed Segal

We give a construction of the Floer homology of the pair of {\it non-compact} Lagrangian submanifolds, which satisfies natural continuity property under the Hamiltonian isotopy which moves the infinity but leaves the intersection set of the…

Symplectic Geometry · Mathematics 2007-05-23 Yong-Geun Oh

We establish the continuous functoriality of wrapped Fukaya categories with respect to Liouville automorphisms, yielding a way to probe the homotopy type of the automorphism group of a Liouville sector. These methods prove Liouville and…

Symplectic Geometry · Mathematics 2024-07-18 Yong-Geun Oh , Hiro Lee Tanaka

In this article we define intersection Floer homology for exact Lagrangian cobordisms between Legendrian submanifolds in the contactisation of a Liouville manifold, provided that the Chekanov-Eliashberg algebras of the negative ends of the…

Symplectic Geometry · Mathematics 2025-02-07 Baptiste Chantraine , Georgios Dimitroglou Rizell , Paolo Ghiggini , Roman Golovko

We use Floer's exact triangle to study the u-map (cup product with the 4-dimensional class) in the Floer cohomology groups of admissible SO(3) bundles over closed, oriented 3-manifolds. In the case of non-trivial bundles we show that…

Differential Geometry · Mathematics 2007-05-23 Kim A. Froyshov

We survey various aspects of Floer theory and its place in modern symplectic geometry, from its introduction to address classical conjectures of Arnold about Hamiltonian diffeomorphisms and Lagrangian submanifolds, to the rich algebraic…

Symplectic Geometry · Mathematics 2025-10-28 Denis Auroux

Around 1988, Floer introduced two important theories: instanton Floer homology as invariants of 3-manifolds and Lagrangian Floer homology as invariants of pairs of Lagrangians in symplectic manifolds. Soon after that, Atiyah conjectured…

Symplectic Geometry · Mathematics 2017-07-14 Aliakbar Daemi , Kenji Fukaya

We construct geometric maps from the cyclic homology groups of the (compact or wrapped) Fukaya category to the corresponding $S^1$-equivariant (Floer/quantum or symplectic) cohomology groups, which are natural with respect to all Gysin and…

Symplectic Geometry · Mathematics 2023-12-13 Sheel Ganatra

We introduce the wrapped Donaldson-Fukaya category of a (generalized) semi-toric SYZ fibration with Lagrangian section satisfying a tameness condition at infinity. Examples include the Gross fibration on the complement of an anti-canonical…

Symplectic Geometry · Mathematics 2022-04-12 Yoel Groman

In \cite{PS}, for a stably framed Liouville manifold $X$ we defined a Donaldson-Fukaya category $\mathcal{F}(X;\mathbb{S})$ over the sphere spectrum, and developed an obstruction theory for lifting quasi-isomorphisms from…

Symplectic Geometry · Mathematics 2025-08-06 Noah Porcelli , Ivan Smith

In mirror symmetry, symplectic Landau-Ginzburg models are mirror to a large class of examples, in particular to Fano varieties and hypersurfaces of many Calabi-Yau and Fano varieties. When studying their Fukaya categories on the A-model in…

Symplectic Geometry · Mathematics 2025-10-29 Haniya Azam , Catherine Cannizzo , Heather Lee , Chiu-Chu Melissa Liu

We construct graph selectors for compact exact Lagrangians in the cotangent bundle of an orientable, closed manifold. The construction combines Lagrangian spectral invariants developed by Oh and results by Abouzaid about the Fukaya category…

Symplectic Geometry · Mathematics 2022-07-12 Lino Amorim , Yong-Geun Oh , Joana Oliveira dos Santos
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