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This paper presents a systematic quantitative study of contact rigidity phenomena based on the contact Hamiltonian Floer theory established by Merry-Uljarevi\'c. Our quantitative approach applies to arbitrary admissible contact Hamiltonian…

Symplectic Geometry · Mathematics 2025-08-25 Danijel Djordjević , Igor Uljarević , Jun Zhang

We study the contact Floer homology ${\rm HF}_*(W, h)$ introduced by Merry-Uljarevi\'c, which associates a Floer-type homology theory to a Liouville domain $W$ and a contact Hamiltonian $h$ on its boundary. The main results investigate the…

Symplectic Geometry · Mathematics 2023-06-19 Igor Uljarević , Jun Zhang

This paper associates a persistence module to a contact vector field $X$ on the ideal boundary of a Liouville manifold. The persistence module measures the dynamics of $X$ on the region $\Omega$ where $X$ is positively transverse to the…

Symplectic Geometry · Mathematics 2024-05-10 Dylan Cant , Igor Uljarević

The contact invariant is an element in the monopole Floer homology groups of an oriented closed three manifold canonically associated to a given contact structure. A non-vanishing contact invariant implies that the original contact…

Geometric Topology · Mathematics 2020-07-29 Mariano Echeverria

We define an invariant of contact 3-manifolds with convex boundary using Kronheimer and Mrowka's sutured monopole Floer homology theory (SHM). Our invariant can be viewed as a generalization of Kronheimer and Mrowka's contact invariant for…

Symplectic Geometry · Mathematics 2016-06-16 John A. Baldwin , Steven Sivek

In the present paper, we develop the Floer-style elliptic Morse theory for the Hamiltonian-perturbed contact action functional attached to the Legendrian links. Motivated by the present authors' construction [OY2] of the a perturbed action…

Symplectic Geometry · Mathematics 2023-12-15 Yong-Geun Oh , Seungook Yu

We define an invariant of contact 3-manifolds with convex boundary using Kronheimer and Mrowka's sutured instanton Floer homology theory. To the best of our knowledge, this is the first invariant of contact manifolds -- with or without…

Symplectic Geometry · Mathematics 2016-03-28 John A. Baldwin , Steven Sivek

In this paper, we apply spectral invariants, constructed in [Oh5,8], to the study of Hamiltonian diffeomorphisms of closed symplectic manifolds $(M,\omega)$. Using spectral invariants, we first construct an invariant norm called the {\it…

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

This sketch shows that the usual generating function based capacities have an interpretation in the language of persistent homology as persistences of certain homology classes in the persistence module formed by the corresponding generating…

Symplectic Geometry · Mathematics 2015-02-23 Maia Fraser

In recent times a great amount of progress has been achieved in symplectic and contact geometry, leading to the development of powerful invariants of 3-manifolds such as Heegaard Floer homology and embedded contact homology. These…

Symplectic Geometry · Mathematics 2012-12-11 Daniel V. Mathews

We relate the machinery of persistence modules to the Legendrian contact homology theory and to Poisson bracket invariants, and use it to show the existence of connecting trajectories of contact and symplectic Hamiltonian flows.

Symplectic Geometry · Mathematics 2021-06-17 Michael Entov , Leonid Polterovich

We introduce a new notion of persistence modules endowed with operators. It encapsulates the additional structure on Floer-type persistence modules coming from the intersection product with classes in the ambient (quantum) homology, along…

Symplectic Geometry · Mathematics 2017-03-07 Leonid Polterovich , Egor Shelukhin , Vukašin Stojisavljević

In this article, the author defines an invariant of rational homology 3-spheres equipped with a contact structure as an element of a cohomotopy set of the Seiberg-Witten Floer spectrum as defined in Manolescu (2003). Furthermore, in light…

Symplectic Geometry · Mathematics 2023-07-06 Bruno Roso

We construct Hamiltonian Floer complexes associated to continuous, and even lower semi-continuous, time dependent exhaustion functions on geometrically bounded symplectic manifolds. We further construct functorial continuation maps…

Symplectic Geometry · Mathematics 2023-06-21 Yoel Groman

We define a version of spectral invariant in the vortex Floer theory for a $G$-Hamiltonian manifold $M$. This defines potentially new (partial) symplectic quasi-morphism and quasi-states when $M//G$ is not semi-positive. We also establish a…

Symplectic Geometry · Mathematics 2018-06-19 Weiwei Wu , Guangbo Xu

We develop a family of deformations of the differential and of the pair-of-pants product on the Hamiltonian Floer complex of a symplectic manifold (M,\omega) which upon passing to homology yields ring isomorphisms with the big quantum…

Symplectic Geometry · Mathematics 2014-11-11 Michael Usher

In this paper, we construct a Hamiltonian Floer theory based invariant called relative symplectic cohomology, which assigns a module over the Novikov ring to compact subsets of closed symplectic manifolds. We show the existence of…

Symplectic Geometry · Mathematics 2021-05-05 Umut Varolgunes

We construct the vortex Floer homology group $VHF (M,\mu;H)$ for an aspherical Hamiltonian $G$-manifold $(M, \omega)$ with moment map $\mu$ and a class of $G$-invariant Hamiltonian loop $H_t$, following the proposal of [3]. This is a…

Symplectic Geometry · Mathematics 2016-03-22 Guangbo Xu

We show that the $L^{\infty}$-norm of the contact Hamiltonian induces a non-degenerate right-invariant metric on the group of contactomorphisms of any closed contact manifold. This contact Hofer metric is not left-invariant, but rather…

Symplectic Geometry · Mathematics 2015-10-22 Egor Shelukhin

Spectral invariants are quantitative measurements in symplectic topology coming from Floer homology theory. We study their dependence on the choice of coefficients in the context of Hamiltonian Floer homology. We discover phenomena in this…

Symplectic Geometry · Mathematics 2024-10-10 Yusuke Kawamoto , Egor Shelukhin
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