activity
20062025
most citedLagrangian concordance of Legendrian knots

66 citations · 175 across the 12 of their papers we have counts for

collaborators

16 papers

math.SG2025

Representations of the Chekanov-Eliashberg algebra from closed exact Lagrangians I

Baptiste Chantraine, Georgios Dimitroglou Rizell, Paolo Ghiggini

This is the first of a series of two articles aiming at relating the compact Fukaya category of a Weinstein manifold to the derived category of finite dimensional representations o…

math.SG2024

Products of locally conformal symplectic manifolds

Baptiste Chantraine, Kevin Sackel

Given two locally conformal symplectic (LCS) structures on manifolds and , we construct a natural -torsor of locally conformal symplectic structures on a certain c…

math.SG2022

Doubly slice knots and obstruction to Lagrangian concordance

Baptiste Chantraine, Noémie Legout

In this short note we observe that a result of Eliashberg and Polterovitch allows to use the doubly slice genus as an obstruction for a Legendrian knot to be a slice of a concordan…

math.SG2021

Reeb chords of Lagrangian slices

Baptiste Chantraine

In this short note we observe that the boundary of a properly embedded compact exact Lagrangian sub-manifolds in a subcritical Weinstein domain necessarily admits Reeb chords.…

math.SG2018★ 3 cited

Representations, sheaves, and Legendrian torus links

Baptiste Chantraine, Lenhard Ng, Steven Sivek

We study an category associated to Legendrian links in whose objects are -dimensional representations of the Chekanov-Eliashberg differential graded al…

math.SG2017★ 47 cited

Geometric generation of the wrapped Fukaya category of Weinstein manifolds and sectors

Baptiste Chantraine, Georgios Dimitroglou Rizell, Paolo Ghiggini +1

We prove that the wrapped Fukaya category of any -dimensional Weinstein manifold (or, more generally, Weinstein sector) is generated by the unstable manifolds of the index…

math.SG2016

Positive Legendrian isotopies and Floer Theory

Baptiste Chantraine, Vincent Colin, Georgios Dimitroglou Rizell

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 positiv…

math.SG2016

Conformal symplectic geometry of cotangent bundles

Baptiste Chantraine, Emmy Murphy

We prove a version of the Arnol'd conjecture for Lagrangian submanifolds of conformal symplectic manifolds: a Lagrangian which has non-zero Morse-Novikov homology for the restr…

math.SG2016★ 8 cited

Noncommutative augmentation categories

Baptiste Chantraine, Georgios Dimitroglou Rizell, Paolo Ghiggini +1

To a differential graded algebra with coefficients in a noncommutative algebra, by dualisation we associate an -category whose objects are augmentations. This generalises…

math.SG2015★ 31 cited

Floer theory for Lagrangian cobordisms

Baptiste Chantraine, Georgios Dimitroglou Rizell, Paolo Ghiggini +1

In this article we define intersection Floer homology for exact Lagrangian cobordisms between Legendrian submanifolds in the contactisation of a Liouville manifold, provided that t…

math.SG2015

Floer homology and Lagrangian concordance

Baptiste Chantraine, Georgios Dimitroglou Rizell, Paolo Ghiggini +1

We derive constraints on Lagrangian concordances from Legendrian submanifolds of the standard contact sphere admitting exact Lagrangian fillings. More precisely, we show that such…

math.SG2013

A note on exact Lagrangian cobordisms with disconnected Legendrian ends

Baptiste Chantraine

We provide in this note two relevant examples of Lagrangian cobordisms. The first one gives an example of two exact Lagrangian submanifolds which cannot be composed in an exact fas…

math.SG2013

Lagrangian concordance is not a symmetric relation

Baptiste Chantraine

We provide an explicit example of a non trivial Legendrian knot such that there exists a Lagrangian concordance from to where is the trivial Legendrian knot. We…

math.SG2012★ 2 cited

Bilinearised Legendrian contact homology and the augmentation category

Frédéric Bourgeois, Baptiste Chantraine

In this paper we construct an -category associated to a Legendrian submanifold of jet spaces. Objects of the category are augmentations of the Chekanov algebra…

math.SG2011★ 18 cited

Some non-collarable slices of Lagrangian surfaces

Baptiste Chantraine

In this note we define the notion of collarable slices of Lagrangian submanifolds. Those are slices of Lagrangian submanifolds which can be isotoped through Lagrangian submanifolds…

math.SG2006★ 66 cited

Lagrangian concordance of Legendrian knots

Baptiste Chantraine

In this article we define Lagrangian concordance of Legendrian knots, the analogue of smooth concordance of knots in the Legendrian category. In particular we study the relation of…