IAS/Princeton/Montreal/Paris/Tel-Aviv Symplectic Geometry Zoominar

Legendrian Barriers

In a previous work with Felix Schlenk, we showed that an analogue of the phenomenon of Lagrangian barriers holds in the contact framework in $S^3$ : there exist (explicit) Legendrian complexes of arcs in $S^3$ that have short Reeb chords to many Legendrian loops. The aim of this talk is to explain that this phenomenon holds more generally in any prequantization bundle (of arbitrary dimension). 

Date & Time

March 20, 2026 | 9:15am – 10:45am
Add to calendar 03/20/2026 09:15 03/20/2026 10:45 IAS/Princeton/Montreal/Paris/Tel-Aviv Symplectic Geometry Zoominar use-title Topic: Legendrian Barriers Speakers: Emmanuel Opshtein, Institut de Recherche Mathématique Avancée, Strasbourg More: https://www.ias.edu/math/events/iasprincetonmontrealparistel-aviv-symplectic-geometry-zoominar-29 In a previous work with Felix Schlenk, we showed that an analogue of the phenomenon of Lagrangian barriers holds in the contact framework in $S^3$ : there exist (explicit) Legendrian complexes of arcs in $S^3$ that have short Reeb chords to many Legendrian loops. The aim of this talk is to explain that this phenomenon holds more generally in any prequantization bundle (of arbitrary dimension).  Remote Access a7a99c3d46944b65a08073518d638c23

Location

Remote Access

Speakers

Emmanuel Opshtein, Institut de Recherche Mathématique Avancée, Strasbourg

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