Symplectic geometry seminar

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Spring Semester 2015

Date / Time

Speaker

Title

Location

2 March 2015
15:15-16:30

Alberto Abbondandolo
Ruhr-Universität Bochum

Event Details

Symplectic Geometry Seminar

Title	Sharp systolic inequalities in Riemannian geometry and Reeb dynamics
Speaker, Affiliation	Alberto Abbondandolo, Ruhr-Universität Bochum
Date, Time	2 March 2015, 15:15-16:30
Location	HG G 43
Abstract	A classical question in Riemannian geometry is to find a sharp upper bound for the ratio of the square of the length of the shortest closed geodesic on a two-sphere by the area of the sphere. I shall discuss how symplectic techniques can be used in order to determine sharp upper bounds for metrics which are sufficiently pinched. I shall also argue that the natural setting for questions of this kind is Reeb dynamics and discuss some results in this setting.

Sharp systolic inequalities in Riemannian geometry and Reeb dynamicsread_more

HG G 43

9 March 2015
15:15-16:30

Igor Uljarevic
ETH Zürich

Event Details

Symplectic Geometry Seminar

Title	The equivariant pair-of-pants product in fixed point Floer cohomology (following work of Seidel)
Speaker, Affiliation	Igor Uljarevic, ETH Zürich
Date, Time	9 March 2015, 15:15-16:30
Location	HG G 43

The equivariant pair-of-pants product in fixed point Floer cohomology (following work of Seidel)

HG G 43

16 March 2015
15:15-16:30

Ailsa Keating
Columbia University, USA

Event Details

Symplectic Geometry Seminar

Title	Homological Mirror Symmetry for Singularities of type Tpqr
Speaker, Affiliation	Ailsa Keating, Columbia University, USA
Date, Time	16 March 2015, 15:15-16:30
Location	HG G 43
Abstract	We present some versions of mirror symmetry for the unimodal singularities of type $T_{p,q,r}$. We will consider some symplectic invariants of the real four-dimensional Milnor fibres of these singularities, and explain how they correspond to coherent sheaves on certain blow-ups of the projective space $\P^2$. Time allowing, we hope to emphasize how the relations between different ``flavours" of invariants (e.g., versions of the Fukaya category) match up on both sides.

Homological Mirror Symmetry for Singularities of type Tpqr read_more

HG G 43

* 23 March 2015
15:15-16:15

Urs Frauenfelder
Universität Augsburg

Event Details

Symplectic Geometry Seminar

Title	Global surfaces of section for the restricted three body problem
Speaker, Affiliation	Urs Frauenfelder, Universität Augsburg
Date, Time	23 March 2015, 15:15-16:15
Location	HG G 43

Global surfaces of section for the restricted three body problem

HG G 43

* 23 March 2015
16:30-17:30

Kai Cieliebak
Universität Augsburg

Event Details

Symplectic Geometry Seminar

Title	Mini Symposium in Symplectic Topology - Punctured holomorphic curves and Lagrangian embeddings
Speaker, Affiliation	Kai Cieliebak, Universität Augsburg
Date, Time	23 March 2015, 16:30-17:30
Location	HG G 43

Mini Symposium in Symplectic Topology - Punctured holomorphic curves and Lagrangian embeddings (CANCELLED)

HG G 43

30 March 2015
15:15-16:30

Event Details

Symplectic Geometry Seminar

Title	Title T.B.A.
Speaker, Affiliation
Date, Time	30 March 2015, 15:15-16:30
Location

Title T.B.A.

20 April 2015
15:15-16:30

Jonny Evans
University College London

Event Details

Symplectic Geometry Seminar

Title	Floer theory for homogeneous Lagrangians
Speaker, Affiliation	Jonny Evans, University College London
Date, Time	20 April 2015, 15:15-16:30
Location	HG G 43

Floer theory for homogeneous Lagrangians

HG G 43

27 April 2015
15:15-16:30

Kathrin Näf
ETH Zürich

Event Details

Symplectic Geometry Seminar

Title	On the existence of infinitely many invariant Reeb orbits
Speaker, Affiliation	Kathrin Näf, ETH Zürich
Date, Time	27 April 2015, 15:15-16:30
Location	HG G 43

On the existence of infinitely many invariant Reeb orbits

HG G 43

* 4 May 2015
15:15-16:30

Paul Biran
ETH Zürich

Event Details

Symplectic Geometry Seminar

Title	Lagrangian cobordism in Lefschetz fibrations (note special room !)
Speaker, Affiliation	Paul Biran, ETH Zürich
Date, Time	4 May 2015, 15:15-16:30
Location	HG G 3

Lagrangian cobordism in Lefschetz fibrations (note special room !)

HG G 3

11 May 2015
15:15-16:30

Peter Albers
Universität Münster

Event Details

Symplectic Geometry Seminar

Title	Cuplength estimates in Morse and Floer homology
Speaker, Affiliation	Peter Albers, Universität Münster
Date, Time	11 May 2015, 15:15-16:30
Location	HG G 43
Abstract	In this talk I will present a general cuplength estimate using Morse- and Floer theoretic methods. From this several (mostly known) results in symplectic geometry follow immediately. The method of proof can be extracted from various sources in the literature. Thus the talk will be mostly educational (I hope.) This is joint work with Doris Hein.

Cuplength estimates in Morse and Floer homology read_more

HG G 43

18 May 2015
15:15-16:30

Felix Hensel
ETH Zürich

Event Details

Symplectic Geometry Seminar

Title	Dehn twists and free subgroups of symplectic mapping class groups - following A. Keating
Speaker, Affiliation	Felix Hensel, ETH Zürich
Date, Time	18 May 2015, 15:15-16:30
Location	HG G 43

Dehn twists and free subgroups of symplectic mapping class groups - following A. Keating

HG G 43

25 May 2015
15:15-16:30

Event Details

Symplectic Geometry Seminar

Title	Title T.B.A.
Speaker, Affiliation
Date, Time	25 May 2015, 15:15-16:30
Location

Title T.B.A.

Notes: red marked events are important, events marked with an asterisk (*) indicate that the time and/or location are different from the usual time and/or location and if you want you can subscribe to the iCal/ics Calender.

Organizers: Paul Biran, Ana Cannas da Silva, William John Merry, Dietmar Salamon

Archive: SS 24 AS 23 SS 23 AS 22 SS 22 SS 21 AS 20 SS 20 AS 19 SS 19 AS 18 SS 18 AS 17 SS 17 AS 16 SS 16 AS 15 SS 15 AS 14 SS 14 AS 13 SS 13 AS 12 SS 12 AS 11 SS 11 AS 10 SS 10 AS 09 WS 03/04 WS 99/00