Events

This page lists past, current, and future events and guests.

Current or upcoming events

Workshop on geometric topology, Sevilla, February 19, 2026.
Working Group: Complexity Theory, University of Sevilla, 2026.

Conferences and workshops

Workshop on geometric topology, Sevilla, February 19, 2026.
Symposium on Low-dimensional Topology at the Indo-European Conference on Mathematics, Pune, India, January 12 - January 16, 2026.
Workshop on surfaces in 4-manifolds, University Regensburg, December 8 - December 12, 2025.
Workshop on branched covers, University of Sevilla, November 17 - November 21, 2025.
Berlin-Hamburg seminar on symplectic geometry, HU Berlin, July 4, 2025.
Berlin-Brandenburg Workshop V: Knot Theory and its Application, University Potsdam, Monday 28. April 2025.
Berlin-Brandenburg Workshop IV: Knot Theory and its Application, HU Berlin, Monday 9. December 2024.
Workshop on 4-manifolds and algorithms, University Regensburg, 9. Sep - 13. Sep 2024.
Berlin-Brandenburg Workshop III: Knot Theory and its Application, University Potsdam, Friday, 17 May 2024.
Berlin-Brandenburg Workshop II: Knot Theory and its Application, FU Berlin, Friday, 17 November 2023.
Berlin-Brandenburg Workshop I: Knot Theory and its Application, HU Berlin, Friday, 14 July 2023.
DMV-Jahrestagung 2022, Section S06: Topology and Geometry, Freie Universität Berlin, September 2022.

Learning seminars and working groups

Sevilla

Working Group: Complexity Theory, University of Sevilla, 2026.

Berlin

Working group seminar on geometric topology, HU Berlin, 2024 - 2025.
Reading seminar: Freedman's proof of the 4-dimensional Poincaré conjecture, HU Berlin, WS 2021/22.

Cologne

Learning Seminar: Computational Topology, University of Cologne, WS 2017/18.
The stabilisation height of fibre surfaces, Lecture series by Filip Misev, University of Cologne, 19 October - 20 October 2017.
Morse Structures on Open Books, Lecture series by Joan Licata, University of Cologne, 17 May - 19 May 2017.

Visitors

Sevilla

Kimihiko Motegi, 11 August - 25 August 2026.
Alvaro del Pino, 31 May - 06 June 2026.
Emmanuel Wagner, 25 May - 30 May 2026.
Tobias Hirsch, 15 February - 20 February 2026.
Stefan Friedl, 15 February - 20 February 2026.
Qiuyu Ren, 11 January - 16 January 2026.
Luisa Paoluzzi, 16 November - 21 November 2025.
Marco Golla, 16 November - 21 November 2025.
Mark Hughes, 16 November - 21 November 2025.
Chun-Sheng Hsueh, 08 November - 22 November 2025.
Leo Mousseau, 08 November - 20 November 2025.
Christian Lange, 28 September - 03 October 2025.

Berlin

Benjamin Bode, 28 July - 30 July 2025.
Misha Schmalian, 20 July - 30 July 2025.
Paula Truöl, 16 July - 19 July 2025.
Maciej Borodzik, 09 July - 11 July 2025.
Valentina Bais, 01 July - 31 July 2025.
Qiuyu Ren, 22 June - 25 June 2025.
Isacco Nonino, 05 May - 09 May 2025.
Monika Yadav, 01 May - 31 July 2025.
Benjamin Bode, 26 April - 29 April 2025.
Misha Schmalian, 23 April - 29 April 2025.
Valentina Bais, 26 January - 31 January 2025.
Claudius Zibrowius, 09 December - 10 December 2024.
Maria Cumplido, 07 December - 10 December 2024.
Monika Yadav, 01 October 2025 - 14 December 2024.
Stefan Friedl, 24 October - 28 October 2024.
Rima Chatterjee, 16 May - 18 May 2024.
Marithania Silvero, 12 December - 17 December 2022.
Christian Lange, 14 October - 19 October 2019.
Daniele Zuddas, 23 July 2019 - 27 July 2019.

Bochum

Eric Stenhede, 23 April - 25 April 2024.
Monika Yadav, 24 June - 29 June 2024.

Heidelberg

Rima Chatterjee, 23 October - 27 October 2023.
Naageswaran Manikandan, 22 January - 27 January 2024.

Cologne

Filip Misev, 19 October - 20 October 2017.
Joan Licata, 18 May - 20 May 2017.