Heidelberg Geometry Seminars and related events
Winter semester 2022/2023


The Geometry Seminar (GS) is the common seminar of the Research Station Geometry and Dynamics (consisting of the Differential Geometry Group and the Symplectic Geometry Group). It takes place every other Tuesday, usually at 1 p.m. in room SRB. Before the seminar, we usually have lunch together.

The Differential Geometry Seminar (DGS) takes place on Thursdays. When in person, we usually meet at 2 p.m. in room SR 5. Our online meetings are usually at 5 p.m., e.g. when the speaker is in a different time zone like the USA. Please see the seminar webpage for further details.

The Symplectic Geometry Seminar (SGS) takes place on Wednesdays at 11:15 in room SR 4.

The RTG Colloquium (RTG) is organized together with people from Karlsruhe. It is part of the RTG days which take place every other Tuesday, alternating between Karlsruhe and Heidelberg.

Additional events are listed in the second table.

If you would like to suggest a speaker, or if you want an event promoted on this webpage, please contact one of the organizers:
Geometry Seminar: James Farre and Richard Siefring
Differential Geometry seminar: James Farre, Gabriele Viaggi, Mitul Islam and Beatrice Pozzetti
Symplectic Geometry seminar: Johanna Bimmermann and Valerio Assenza
RTG Colloquium: Ana Chavez-Caliz and Georgios Kydonakis

Date and time Speaker Title Seminar
Tuesday, October 18th Charles Reid (University of Texas at Austin) Limits of Convex Projective Structures and Finsler Metrics GS
Tuesday, October 25th Goulnara Arzhantseva (Universität Wien) Logarithmic girth expander Cayley graphs RTG
Tuesday, November 8th, in Karlsruhe Henry Wilton (University of Cambridge) Curvature invariants coming from linear programming RTG
Wednesday, November 16th Jakub Tomaszewski (Poznań University of Technology) Dendrite maps are not that phenomenal SGS
Tuesday, November 22nd Stephan Stadler (Max Plank Institute for Mathematics, Bonn) Periodic CAT(0) spaces RTG
Thursday, November 24th,
at 9:15 in room SR2 (note the
unusual time and place!)
Urs Fuchs (Monash University) tba SGS
Tuesday, November 29th Murat Sağlam (Universität zu Köln) On the existence of integrable Reeb flows GS
Wednesday, November 30th Tilman Becker (Cologne) Geodesic and conformally Reeb vector fields on flat 3-manifolds SGS
Tuesday, December 6th, in Karlsruhe Holger Kammeyer (Heinrich-Heine-Universität Düsseldorf) Galois cohomology and absolutely solitary groups RTG
Wednesday, December 7th Alessio Pellegrini (ETH Zürich) A Bangert-Hingston Theorem for Starshaped Hypersurfaces SGS
Tuesday, December 13th Gabriele Viaggi (Heidelberg) TBA GS
Tuesday, January 10th Anton Zorich (Université de Paris) Random square-tiled surfaces of large genus and random multicurves on surfaces of large genus RTG
Monday, January 23rd Saul Schleimer (University of Warwick) The census of veering triangulations RTG/HEGL
Tuesday, January 24th, in Karlsruhe Chris Connell (Indiana University) The natural flow and homological vanishing in nonpositively curved manifolds RTG
Tuesday, February 7th Ana Rechtman (Université de Strasbourg) Broken books and periodic orbits of Reeb flows in dimension 3 RTG
Tuesday, February 14th Duc-Manh Nguyen (Université de Bordeaux) TBA GS
Tuesday, March 21st Ken'ichi Ohshika (Gakushuin University) TBA GS


Archive of past seminars: Summer 2022 | Winter 2021/22 | Summer 2021 | Winter 2020/21 | Summer 2020 | Winter 2019/20 | Summer 2019 | Winter 2018/19 | Summer 2018 | Winter 2017/18 | Summer 2017 | Winter 2016/17| Combined Archive

The following table shows additional math-events.

Date/Place Event
October 20th - 21st, Mathematikon - Heidelberg Workshop in Geometry and Dynamics
January 16th - 18th - IWH Workshop on Interplay between symplectic geometry and cluster theory
January 31st, Karlsruhe Geometry Day
February 27 - March 3rd, Heidelberg Workshop on Pseudoholomorphic Curves in Hamiltonian Dynamics





Heidelberg Geometry Seminar