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20062025
most citedQuasi-morphisms on contactomorphism groups and contact rigidity

25 citations · 81 across the 17 of their papers we have counts for

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math.SG2025

Hofer-continuous quasi-morphisms on Liouville manifolds

Frol Zapolsky

We show that, given a complete Liouville manifold, any homogeneous quasi-morphism on its Hamiltonian group, which satisfies a strengthened version of Hofer continuity called stabil…

math.SG2025

On the Lagrangian Hofer geometry of Clifford tori

Frol Zapolsky

We show that the space of Lagrangians which are Hamiltonian isotopic to the Clifford torus in a complex projective space or in the four-dimensional quadric, taken with Chekanov's L…

math.SG2024

Constraints on symplectic quasi-states

Adi Dickstein, Frol Zapolsky

We prove that given a closed connected symplectic manifold equipped with a Borel probability measure, an arbitrarily large portion of the measure can be covered by a symplectically…

math.SG2021★ 3 cited

Symplectic topology and ideal-valued measures

Adi Dickstein, Yaniv Ganor, Leonid Polterovich +1

We adapt Gromov's notion of ideal-valued measures to symplectic topology, and use it for proving new results on symplectic rigidity and symplectic intersections. Furthermore, it en…

math.SG2019

Quasi-morphisms on contactomorphism groups and Grassmannians of 2-planes

Frol Zapolsky

We construct a natural prequantization space over a monotone product of a toric manifold and an arbitrary number of complex Grassmannians of 2-planes in even-dimensional complex sp…

math.SG2016★ 1 cited

Rigidity of the L^p norm of the Poisson bracket on surfaces

Karina Samvelyan, Frol Zapolsky

For a symplectic manifold let be the corresponding Poisson bracket. In this note we prove that the functional is lower-se…

math.SG2015

On the contact mapping class group of the contactization of the - Milnor fiber

Sergei Lanzat, Frol Zapolsky

We construct an embedding of the full braid group on strands , , into the contact mapping class group of the contactization of the -Mil…

math.SG2015★ 19 cited

The Lagrangian Floer-quantum-PSS package and canonical orientations in Floer theory

Frol Zapolsky

The purpose of this paper is to extend the construction of the PSS-type isomorphism between the Floer homology and the quantum homology of a monotone Lagrangian submanifold of…

math.SG2015

Spectral invariants for monotone Lagrangians

Rémi Leclercq, Frol Zapolsky

Since spectral invariants were introduced in cotangent bundles via generating functions by Viterbo in the seminal paper "Symplectic topology as the geometry of generating functions…

math.SG2013★ 25 cited

Quasi-morphisms on contactomorphism groups and contact rigidity

Matthew Strom Borman, Frol Zapolsky

We build homogeneous quasi-morphisms on the universal cover of the contactomorphism group for certain prequantizations of monotone symplectic toric manifolds. This is done using Gi…

math.SG2012★ 5 cited

Geometric structures on contactomorphism groups and contact rigidity in jet spaces

Frol Zapolsky

For a closed connected manifold N, we establish the existence of geometric structures on various subgroups of the contactomorphism group of the standard contact jet space J^1N, as…

math.SG2012★ 2 cited

On the Lagrangian Hofer geometry in symplectically aspherical manifolds

Frol Zapolsky

We use spectral invariants in Lagrangian Floer theory in order to show that there exist \emph{isometric} embeddings of normed linear spaces (finite or infinite dimensional, dependi…

math.SG2011

Partial quasi-morphisms and quasi-states on cotangent bundles, and symplectic homogenization

Alexandra Monzner, Nicolas Vichery, Frol Zapolsky

For a closed connected manifold N, we construct a family of functions on the Hamiltonian group G of the cotangent bundle T^*N, and a family of functions on the space of smooth func…

math.SG2011★ 4 cited

Quasi-morphisms on cotangent bundles and symplectic homogenization

Alexandra Monzner, Nicolas Vichery, Frol Zapolsky

For a class of closed manifolds N, we construct a family of functions on the Hamiltonian group G of the cotangent bundle T*N. These restrict to homogeneous quasi-morphisms on the s…

math.SG2010

A comparison of symplectic homogenization and Calabi quasi-states

Alexandra Monzner, Frol Zapolsky

We compare two functionals defined on the space of continuous functions with compact support in an open neighborhood of the zero section of the cotangent bundle of a torus. One com…

math.SG2010

On almost Poisson commutativity in dimension two

Frol Zapolsky

Consider the following question: given two functions on a symplectic manifold whose Poisson bracket is small, is it possible to approximate them in the norm by commuting func…

math.SG2007

Quasi-states and the Poisson bracket on surfaces

Frol Zapolsky

We present a convexity-type result concerning simple quasi-states on closed manifolds. As a corollary, an inequality emerges which relates the Poisson bracket and the measure of no…

math.SG2006★ 3 cited

Quasi-morphisms and the Poisson bracket

Michael Entov, Leonid Polterovich, Frol Zapolsky

For a class of symplectic manifolds, we introduce a functional which assigns a real number to any pair of continuous functions on the manifold. This functional has a number of inte…