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By studying spaces of flow graphs in a closed oriented manifold, we construct operations on its cohomology, parametrized by the homology of the moduli spaces of compact Riemann surfaces with boundary marked points. We show that the…

Geometric Topology · Mathematics 2013-05-03 Viktor Fromm

The Floer homology of a cotangent bundle is isomorphic to loop space homology of the underlying manifold, as proved by Abbondandolo-Schwarz, Salamon-Weber, and Viterbo. In this paper we show that in the presence of a Dirac magnetic monopole…

Symplectic Geometry · Mathematics 2012-01-24 Urs Frauenfelder , Will J. Merry , Gabriel P. Paternain

We show that a monotone Lagrangian $L$ in $\mathbb{CP}^n$ of minimal Maslov number $n + 1$ is homeomorphic to a double quotient of a sphere, and thus homotopy equivalent to $\mathbb{RP}^n$. To prove this we use Zapolsky's canonical pearl…

Symplectic Geometry · Mathematics 2020-01-10 Momchil Konstantinov , Jack Smith

In this paper, we study a model for $S^1$-equivariant monopole Floer homology for rational homology three-spheres via a homological device called $\mathcal{S}$-complex. Using the Chern-Simons-Dirac functional, we define an…

Geometric Topology · Mathematics 2024-09-26 Minh Lam Nguyen

For a Liouville domain $W$ whose boundary admits a periodic Reeb flow, we can consider the connected component $[\tau] \in \pi_0(\text{Symp}^c(\widehat W))$ of fibered twists. In this paper, we investigate an entropy-type invariant, called…

Symplectic Geometry · Mathematics 2018-04-19 Joontae Kim , Myeonggi Kwon , Junyoung Lee

Knot Floer homology is a knot invariant defined using holomorphic curves. In more recent work, taking cues from bordered Floer homology,the authors described another knot invariant, called "bordered knot Floer homology", which has an…

Geometric Topology · Mathematics 2019-12-05 Zoltan Szabo , Peter Ozsvath

This article provides the first extension of Lagrangian Intersection Floer cohomology to Poisson structures which are almost everywhere symplectic, but degenerate on a lowerdimensional submanifold. The main result of the article is the…

Symplectic Geometry · Mathematics 2025-01-08 Charlotte Kirchhoff-Lukat

We define and investigate spectral invariants for Floer homology $HF(H,U:M)$ of an open subset $U\subset M$ in $T^*M$, defined by Kasturirangan and Oh as a direct limit of Floer homologies of approximations. We define a module structure…

Symplectic Geometry · Mathematics 2017-01-20 Jelena Katić , Darko Milinković , Jovana Nikolić

In this paper we define instanton Floer homology groups for a pair consisting of a compact oriented 3-manifold with boundary and a Lagrangian submanifold of the moduli space of flat SU(2)-connections over the boundary. We carry out the…

Symplectic Geometry · Mathematics 2007-08-23 Dietmar A. Salamon , Katrin Wehrheim

We generalize the Cohen-Jones-Segal construction to the Morse-Bott setting. In other words, we define framings for Morse-Bott analogues of flow categories and associate a stable homotopy type to this data. We use this to recover the stable…

Algebraic Topology · Mathematics 2024-03-07 Laurent Côté , Yusuf Barış Kartal

Positive loops of Legendrian embeddings are examined from the point of view of Floer homology of Lagrangian cobordisms. This leads to new obstructions to the existence of a positive loop containing a given Legendrian, expressed in terms of…

Symplectic Geometry · Mathematics 2019-04-11 Baptiste Chantraine , Vincent Colin , Georgios Dimitroglou Rizell

Using contact-geometric techniques and sutured Floer homology, we present an alternate formulation of the minus and plus version of knot Floer homology. We further show how natural constructions in the realm of contact geometry give rise to…

Geometric Topology · Mathematics 2017-06-14 John B. Etnyre , David Shea Vela-Vick , Rumen Zarev

It has been a central open problem in Heegaard Floer theory whether cobordisms of links induce homomorphisms on the associated link Floer homology groups. We provide an affirmative answer by introducing a natural notion of cobordism between…

Geometric Topology · Mathematics 2016-07-29 András Juhász

Similar to knots in S^3, any knot in a lens space has a grid diagram from which one can combinatorially compute all of its knot Floer homology invariants. We give an explicit description of the generators, differentials, and rational Maslov…

Geometric Topology · Mathematics 2008-08-05 Kenneth L. Baker , J. Elisenda Grigsby , Matthew Hedden

Answering a question of Witten, we introduce a novel method for defining an integral version of Lagrangian Floer homology, removing the standard restriction that the Lagrangians in question must be relatively Pin. Using this technique, we…

Symplectic Geometry · Mathematics 2019-12-05 Semon Rezchikov

We follow the same technics we used before in \cite{AZ} of extending knot Floer homology to embedded graphs in a 3-manifold, by using the Kauffman topological invariant of embedded graphs by associating family of links and knots to a such…

Algebraic Topology · Mathematics 2018-01-08 Ahmad Zainy Al-Yasry

We introduce a contravariant functor, called Floer functor, from the category of Lagrangian conductors of a symplectic manifold to the homotopy category of bounded chain complexes of open strings in this manifold. The latter two categories…

Symplectic Geometry · Mathematics 2008-12-02 Jean-Yves Welschinger

In this paper, Floer homology for Lagrangian submanifolds in an open symplectic manifold given as the complement of a smooth divisor is discussed. The main new feature of this construction is that we do not make any assumption on positivity…

Symplectic Geometry · Mathematics 2022-10-31 Aliakbar Daemi , Kenji Fukaya

In arXiv:1611.09927, we constructed a well-defined Lagrangian Floer invariant for any closed, oriented $3$-manifold $Y$ via the symplectic geometry of so-called traceless $\mathrm{SU}(2)$-character varieties. This invariant,…

Geometric Topology · Mathematics 2019-12-20 Henry T. Horton

Let $R$ be a commutative ring spectrum. We construct the wrapped Donaldson--Fukaya category with coefficients in $R$ of any stably polarized Liouville sector. We show that any two $R$-orientable and isomorphic objects admit $R$-orientations…

Symplectic Geometry · Mathematics 2025-10-02 Johan Asplund , Yash Deshmukh , Alex Pieloch
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