activity
20212026
collaborators

8 papers

math.SG2026

The Lagrangian flux-monodromy morphism

Joé Brendel, Jean-Philippe Chassé, Rémi Leclercq

We define a new morphism on the fundamental group of the space of Lagrangian submanifolds, which takes into account the Lagrangian flux and monodromy. We study the discreteness of…

math.SG2026

A note on the cardinality of Lagrangian packings

Joé Brendel, Jean-Philippe Chassé, Laurent Côté

Given a symplectic manifold, can one pack uncountably many Lagrangian submanifolds in a given Hamiltonian isotopy class of this symplectic manifold? We address and …

math.SG2024

Weinstein exactness of nearby Lagrangians and related questions

Marcelo S. Atallah, Jean-Philippe Chassé, Rémi Leclercq +1

We address the following problem: if a Hamiltonian diffeomorphism maps a Lagrangian submanifold to a small Weinstein neighborhood of , is the image necessarily Hamiltonian i…

math.SG2024

Lagrangian metric geometry with Riemannian bounds

Jean-Philippe Chassé

We study collections of exact Lagrangian submanifolds respecting some uniform Riemannian bounds, which we equip with a metric naturally arising in symplectic topology (e.g. the Lag…

math.SG2023

A Hölder-type inequality for the Hausdorff distance between Lagrangians

Jean-Philippe Chassé, Rémi Leclercq

We prove a Hölder-type inequality for the Hausdorff distance between Lagrangians with respect to the Lagrangian spectral distance or the Hofer-Chekanov distance in the spirit of Jo…

math.CV2023

Reverse isoperimetric inequalities for Lagrangian intersection Floer theory

Jean-Philippe Chassé, Jeff Hicks, Yoon Jae Nick Nho

We extend Groman and Solomon's reverse isoperimetric inequality to pseudoholomorphic curves with punctures at the boundary and whose boundary components lie in a collection of Lagr…

math.SG2022

Hausdorff limits of submanifolds of symplectic and contact manifolds

Jean-Philippe Chassé

We study sequences of immersions respecting bounds coming from Riemannian geometry and apply the ensuing results to the study of sequences of submanifolds of symplectic and contact…

math.SG2021

Convergence and Riemannian bounds on Lagrangian submanifolds

Jean-Philippe Chassé

We consider collections of Lagrangian submanifolds of a given symplectic manifold which respect uniform bounds of curvature type coming from an auxiliary Riemannian metric. We prov…