meetings

past meetings

2026

• Higher Geometric Structures along the Lower Rhine XX, Utrecht 16-17, 2026
  with Marius Crainic, Ioan Marcut, Ieke Moerdijk, Steffen Sagave

2025

• PhD retreat (Bonn-Cologne-Göttingen-Utrecht-Würzburg), Würzburg, Dec 5-8, 2025

• Higher Geometric Structures along the Lower Rhine XIX, Cologne, Sep 25-26, 2025
  with Marius Crainic, Ioan Marcut, Ieke Moerdijk, Steffen Sagave

2025

• PhD retreat (Bonn-Cologne-Göttingen-Würzburg), Burbach, Mar 7-10, 2025
  with David Aretz, Janina Bernardy, Kalin Krishna, David Miyamoto, Annika Tarnowksy

• Quantum Topology, May 12-16, 2025
  with Ingrid Irmer, Roland van der Veen, Campbell Wheeler

• Higher Geometric Structures along the Lower Rhine XVIII, Nijmegen, Jan 23-24, 2025
  with Marius Crainic, Ioan Marcut, Ieke Moerdijk, Steffen Sagave

2024

• PhD retreat (Bonn-Göttingen-Würzburg), Bielefeld, Oct 25-28, 2024
  with David Aretz, Kalin Krishna, David Miyamoto, Maarten Mol, Annika Tarnowksy

• Combinatorics, Resurgence and Algebraic Geometry in Quantum Field Theory, August 19-23, 2024
  with Michael Borinsky, Ralph Kaufmann, Dirk Kreimer, David Prinz, Karen Yeats

• Conference on Arithmetic Geometry in Honour of Gerd Faltings’ 70th birthday, July 22-26, 2024
  with Christian Liedtke, Wiesława Nizioł

• Higher Geometric Structures along the Lower Rhine XVII, Bonn, May 2-3, 2024
  with Marius Crainic, Ioan Marcut, Ieke Moerdijk, Steffen Sagave

2023

• PhD retreat (Bonn-Göttingen-Würzburg), Kloster Höchst, Oct 27-30, 2023
  with Lory Aintablian, Maarten Mol, Annika Tarnowksy

• Arbeitstagung 2023 on Condensed Mathematics, Jul 8-12, 2023
  local organizer with Dustin Clausen, Peter Scholze

• PhD retreat (Bonn-Göttingen-Würzburg), Bad Münster am Stein, Jun 9-12, 2023
  with Lory Aintablian, Maarten Mol, Annika Tarnowksy

• Higher Geometric Structures along the Lower Rhine XVI, Utrecht, Feb 16-17, 2023
  with Marius Crainic, Ioan Marcut, Ieke Moerdijk, Steffen Sagave

2022

• Higher Geometric Structures along the Lower Rhine XV, Nijmegen, Nov 3-4, 2022
  with Marius Crainic, Magdalena Kedziorek, Ieke Moerdijk, Steffen Sagave

2020

• Higher Geometric Structures along the Lower Rhine XIV, Bonn, Mar 12-13, 2020
  with Marius Crainic, Ioan Marcut, Ieke Moerdijk, Steffen Sagave

2019

• Arbeitstagung 2019 on Geometry, Jul 8-12, 2019
  with Werner Ballmann, Ursula Hamenstädt, Misha Kapovich

• Higher Geometric Structures along the Lower Rhine XIII, Utrecht, Jun 13-14, 2019
  with Marius Crainic, Ioan Marcut, Ieke Moerdijk, Steffen Sagave

• Higher Geometric Structures along the Lower Rhine XII, Nijmegen, Jan 31-Feb 1, 2019
  with Marius Crainic, Ioan Marcut, Ieke Moerdijk, Steffen Sagave

2018

• Conference on: Algebraic Groups, Lie Algebras and their Representations on the occasion of Jens Carsten Jantzen’s 70th birthday, Nov 22 - 24, 2018
  local organizer with Wolfgang Soergel, Catharina Stroppel, Geordie Williamson

• Conference on Arithmetic and Automorphic Forms on the occasion of Günter Harder’s 80th birthday, Bonn, Mar 12-14, 2018
  local organizer, with Werner Ballmann, Joachim Schwermer, Michael Rapoport

• Higher Geometric Structures along the Lower Rhine XI, Bonn, Mar 8-9, 2018
  with Marius Crainic, Ioan Marcut, Ieke Moerdijk, Steffen Sagave

2017

• Higher Geometric Structures along the Lower Rhine X, Utrecht, Oct 19-20, 2017
  with Marius Crainic, Ioan Marcut, Ieke Moerdijk, Steffen Sagave

• Arbeitstagung 2017 on “Physical Mathematics” in honor of Yuri Manin, Bonn, Jun 19-23, 2017
  with Mikhail Kapranov, Peter Teichner, Bruno Vallette

• Higher Geometric Structures along the Lower Rhine IX, Nijmegen, May 11-12, 2017
  with Marius Crainic, Ioan Marcut, Ieke Moerdijk, Steffen Sagave

2016

• Higher Geometric Structures along the Lower Rhine VIII, Bonn, Dec 15-16, 2016
  with Marius Crainic, Ioan Marcut, Ieke Moerdijk, Steffen Sagave

• Conference on the Cohomology of Arithmetic Groups on the occasion of Joachim Schwermer’s 66th birthday, Bonn, Jun 6-10, 2016
  local organizer with G. Harder, M. Rapoport

• Higher Geometric Structures along the Lower Rhine VII, KU Leuven, Apr 7-8, 2016
  with Marius Crainic, Ioan Marcut, Ieke Moerdijk, Steffen Sagave, Marco Zambon

• Program on Higher Structures in Geometry and Physics, MPIM Bonn, Jan-Mar 2016
  with Michael Batanin, Ralph Kaufmann, Martin Markl

  • Opening Conference, Jan 18-22, 2016

  • Workshop on Homotopy Type Theory, Feb 10-14, 2016

  • Closing Conference, Mar 18-22, 2016

2015

• Higher Structures in Geometry and Physics 2015, Bonn, Oct 12-16, 2015
  with Anton Alekseev, Chris Schommer-Pries, Chenchang Zhu

• Higher Geometric Structures along the Lower Rhine VI, Utrecht, Sep 24-26, 2015
  with Marius Crainic, Ieke Moerdijk

• Mathematische Arbeitstagung 2015, Bonn, Jun 26 - Jul 3, 2015
  with Martin Möller, Don Zagier

2014

• Symplectic Geometry Day, Bonn, Dec 11, 2014
  with Ursula Hamenstädt, Daniel Huybrechts

• Higher Geometric Structures along the Lower Rhine V, Nijmegen, Jun 19-20, 2014
  with Marius Crainic, Ieke Moerdijk

• Conference on Arithmetic Algebraic Geometry on the occasion of Gerd Faltings’ 60th birthday, Bonn, Jun 10-13, 2013
  local organizer with D. Huybrechts, M. Rapoport, D. Zagier

• Higher Geometric Structures along the Lower Rhine IV, Bonn, Feb 13-14, 2014
  with Marius Crainic, Ieke Moerdijk

2013

• Higher Geometric Structures along the Lower Rhine III, Oct 17-18, 2013, Utrecht
  with Marius Crainic and Ieke Moerdijk

• Mathematische Arbeitstagung 2013, Bonn, May 22-25, 2013
  local organizer with W. Ballmann, G. Faltings, P. Teichner, D. Zagier

2012

• Higher Geometric Structures along the Lower Rhine II, Dec 6-7, 2012, Nijmegen
  with Marius Crainic, Ieke Moerdijk

• Higher Geometric Structures along the Lower Rhine I, Jan 12-13, 2012, Bonn
  with Marius Crainic, Ieke Moerdijk