Departement Mathematik

Symplectic geometry seminar

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Herbstsemester 2014

Datum / Zeit Referent:in Titel Ort
15. September 2014
15:15-16:30
Details

Symplectic Geometry Seminar

Titel no seminar
Referent:in, Affiliation
Datum, Zeit 15. September 2014, 15:15-16:30
Ort HG G 43
no seminar
HG G 43
22. September 2014
15:15-16:30 		Dietmar Salamon
ETH Zürich
Details

Symplectic Geometry Seminar

Titel Donaldson's moment map approach to Kahler-Einstein geometry
Referent:in, Affiliation Dietmar Salamon, ETH Zürich
Datum, Zeit 22. September 2014, 15:15-16:30
Ort HG G 43
Donaldson's moment map approach to Kahler-Einstein geometry
HG G 43
29. September 2014
15:15-16:30
Details

Symplectic Geometry Seminar

Titel no seminar
Referent:in, Affiliation
Datum, Zeit 29. September 2014, 15:15-16:30
Ort HG G 43
no seminar
HG G 43
6. Oktober 2014
15:15-16:30 		Lev Buhovsky
Tel-Aviv University, Israel
Details

Symplectic Geometry Seminar

Titel C^0 symplectic geometry of smooth submanifolds
Referent:in, Affiliation Lev Buhovsky, Tel-Aviv University, Israel
Datum, Zeit 6. Oktober 2014, 15:15-16:30
Ort HG G 43
Abstract I will talk about a recent study of rigidity and flexibility of smooth submanifolds under the action of symplectic homeomorphisms, formulating some new results and questions. This study is a natural continuation of previous works of Emmanuel Opshtein, and of Vincent Humilière, Rémi Leclercq, and Sobhan Seyfaddini. My talk will be based on a joint work with Emmanuel Opshtein.
C^0 symplectic geometry of smooth submanifoldsread_more
HG G 43
13. Oktober 2014
15:15-16:30 		Lev Buhovsky
Tel-Aviv University, Israel
Details

Symplectic Geometry Seminar

Titel Unboundedness of the first eigenvalue of the Laplacian in symplectic category
Referent:in, Affiliation Lev Buhovsky, Tel-Aviv University, Israel
Datum, Zeit 13. Oktober 2014, 15:15-16:30
Ort HG G 43
Abstract I will discuss a certain symplectic flexibility result concerning the first eigenvalue of the Laplacian. Previous results in this direction were obtained by Leonid Polterovich, and by Dan Mangoubi.
Unboundedness of the first eigenvalue of the Laplacian in symplectic categoryread_more
HG G 43
20. Oktober 2014
15:15-16:30 		Robin Krom
ETH Zürich
Details

Symplectic Geometry Seminar

Titel The Donaldson geometric flow
Referent:in, Affiliation Robin Krom, ETH Zürich
Datum, Zeit 20. Oktober 2014, 15:15-16:30
Ort HG G 43
The Donaldson geometric flow
HG G 43
27. Oktober 2014
15:15-16:30 		Marco Mazzucchelli
ENS Lyon, France
Details

Symplectic Geometry Seminar

Titel Periodic orbits of exact magnetic flows on surfaces
Referent:in, Affiliation Marco Mazzucchelli, ENS Lyon, France
Datum, Zeit 27. Oktober 2014, 15:15-16:30
Ort HG G 43
Abstract This talk is about periodic obits of exact magnetic flows on the cotangent bundle of closed surfaces. The dynamics of these Hamiltonian systems on high energy levels is well known: it is conjugated to a Reeb flow, and actually to a Finsler geodesic flow. In this talk, I will focus on low energies, more precisely on energies below the so-called Mañé critical value of the universal covering. After introducing the setting, I will present a recent result asserting the existence of infinitely many periodic orbits on almost all energy levels in this range. This is a joint work with A. Abbondandolo, L. Macarini, and G. P. Paternain.
Periodic orbits of exact magnetic flows on surfacesread_more
HG G 43
3. November 2014
15:15-16:30 		Denis Auroux
Berkeley University, USA
Details

Symplectic Geometry Seminar

Titel New constructions of monotone Lagrangian tori
Referent:in, Affiliation Denis Auroux, Berkeley University, USA
Datum, Zeit 3. November 2014, 15:15-16:30
Ort HG G 43
New constructions of monotone Lagrangian tori
HG G 43
10. November 2014
15:15-16:30
Details

Symplectic Geometry Seminar

Titel no seminar
Referent:in, Affiliation
Datum, Zeit 10. November 2014, 15:15-16:30
Ort
no seminar
17. November 2014
15:15-16:30 		Berit Singer
ETH Zürich
Details

Symplectic Geometry Seminar

Titel Quantum homology for Lagrangian cobordism
Referent:in, Affiliation Berit Singer, ETH Zürich
Datum, Zeit 17. November 2014, 15:15-16:30
Ort HG G 43
Quantum homology for Lagrangian cobordism
HG G 43
24. November 2014
15:15-16:30 		Will Merry
ETH Zürich
Details

Symplectic Geometry Seminar

Titel Orderability and the Weinstein Conjecture
Referent:in, Affiliation Will Merry, ETH Zürich
Datum, Zeit 24. November 2014, 15:15-16:30
Ort HG G 43
Abstract Joint work with Peter Albers and Urs Fuchs. In 2000 Eliashberg-Polterovich introduced the natural notion of orderability of contact manifolds; that is, the (non)existence of positive loops of contactomorphisms. I will explain how one can study orderability questions using the machinery of Rabinowitz Floer homology. We establish a link between orderable and hypertight contact manifolds, and show that the Weinstein Conjecture holds (i.e. there exists a closed Reeb orbit) whenever there exists a positive (not necessarily contractible) loop of contactomorphisms.
Orderability and the Weinstein Conjectureread_more
HG G 43
1. Dezember 2014
15:15-16:30
Details

Symplectic Geometry Seminar

Titel no seminar
Referent:in, Affiliation
Datum, Zeit 1. Dezember 2014, 15:15-16:30
Ort HG G 43
no seminar
HG G 43
8. Dezember 2014
15:15-16:30 		Jake Solomon
Hebrew University, Israel
Details

Symplectic Geometry Seminar

Titel A reverse isoperimetric inequality for J-holomorphic curves
Referent:in, Affiliation Jake Solomon, Hebrew University, Israel
Datum, Zeit 8. Dezember 2014, 15:15-16:30
Ort HG G 43
Abstract The length of the boundary of a J-holomorphic curve with Lagrangian boundary conditions is dominated by a constant times its area. This inequality is useful for showing the adic convergence of power series arising from A-infinity algebras associated with Lagrangian submanifolds. It gives rise to an invariant of Lagrangian submanifolds called the optimal isoperimetric constant. And it proves the compactness of certain moduli of J-holomorphic curves with Lagrangian boundary conditions in toric Calabi-Yau threefolds. This is joint work with Y. Groman.
A reverse isoperimetric inequality for J-holomorphic curvesread_more
HG G 43
15. Dezember 2014
15:15-16:30
Details

Symplectic Geometry Seminar

Titel no seminar
Referent:in, Affiliation
Datum, Zeit 15. Dezember 2014, 15:15-16:30
Ort
no seminar

Hinweise: wenn Sie möchten, können Sie den iCal/ics-Kalender abonnieren.

Organisatoren:innen: Paul Biran, Ana Cannas da Silva, Dietmar Salamon

Archiv: FS 24 HS 23 FS 23 HS 22 FS 22 FS 21 HS 20 FS 20 HS 19 FS 19 HS 18 FS 18 HS 17 FS 17 HS 16 FS 16 HS 15 FS 15 HS 14 FS 14 HS 13 FS 13 HS 12 FS 12 HS 11 FS 11 HS 10 FS 10 HS 09 WS 03/04 WS 99/00

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