Events
Workshop
Annual Conference SPP2458 (website)
September 14-16, 2026, Frankfurt, Germany
Organizers: Laura Casabella, Raman Sanyal, Thorsten Theobald
Speakers: Federico Ardila, Viktoriia Borovik, Marie-Charlotte Brandenburg, Giulia Codenotti, Jan Draisma, Claudia Fevola, Mario Kummer, Torsten Mütze, Frank Vallentin
Public lecture: Bernd Sturmfels
Highlight talk: Marie-Charlotte Brandenburg (Dive into Research)
Workshop
Combinatorics meets Coxeter Groups (website)
September 30-October 2, 2026, Bielefeld, Germany
Organizers: Sebastian Degen, Leonie Mühlherr, Marcel Palmer
Invited speakers: María Cumplido, Christian Stump, Olga Varghese
Conference
FPSAC 2026 (website)
July 13-17, 2026, Seattle, USA
Chairs of the organizing committee: Sara Billey, Ricky Liu
Organizing committee member: Christian Stump
Invited speakers: Nantel Bergeron, Pamela E. Harris, Martina Juhnke, Seung Jin Lee, Jennifer Morse (memorial lecture), Vincent Pilaud, Felipe Rincón, Mehtaab Sawhney, Mike Zabrocki (memorial lecture)
Poster: Elena Hoster (Chow polynomials of simplicial posets with positive h-vector are real-rooted)
Workshop
Benchmarks in Leipzig (website)
May 11-13, 2026, MPI MiS Leipzig, Germany
Organizers: Veronica Calvo Cortes, Christian Stump, Bernd Sturmfels
Talks: Christian Stump (A primer on ScienceBench), Nupur Jain (Research experience in AI), Bernd Sturmfels (On humans and machines)
Participants: 48 mathematicians, among them Marie Brandenburg, Chiara Giardino, Elena Hoster, Nupur Jain and Aryaman Jal from our group
Workshop
Combinatorial Coworkspace (website)
March 20-28, 2026, Kleinwalsertal, Austria
Organizers: Marie Brandenburg, Martina Juhnke-Kubitzke, Thomas Kahle, Lukas Kühne, Raman Sanyal, Christian Stump
MFO Workshop
Enumerative Combinatorics
January 11-16, 2026, MFO Oberwolfach, Germany
Organizers: Guillaume Chapuy, Sergi Elizalde, Ilse Fischer
Talk: Christian Stump
Intensive research program
Combinatorial Geometries and Geometric Combinatorics (website)
Research school October 2-17, 2025 and closing conference November 24-28, 2025, CRM Barcelona, Spain
Poster: Elena Hoster (Chow polynomials and friends)
Participants: Chiara Giardino (research school), Elena Hoster and Christian Stump (closing conference)
Conference
94th Séminaire Lotharingien de Combinatoire (website)
September 14-17, 2025, Bad Boll, Germany
Organizers: Drew Armstrong, Christian Krattenthaler, Christian Stump
Invited lecturers: Matthias Beck, Jang Soo Kim
Contributed talk: Aryaman Jal
Workshop
Annual Conference SPP2458 (website)
September 3-5, 2025, Hannover, Germany
Speakers: Ana Botero, Laura Ciobanu, Eleonore Faber, Katharina Jochemko, Christian Krattenthaler, Marius Lindauer, Joshua Maglione, Aida Maraj, Christian Stump, Martin Ulirsch, Volkmar Welker
Student research program
Dive into Research @ Bochum University (website)
August 25-September 26, 2025, Bochum, Germany
Organizers: Karin Baur, Marie Brandenburg, Christian Stump
Project leaders: Drew Armstrong, Karin Baur, Marie Brandenburg, Christian Stump
Conference
FPSAC 2025 (website)
July 21-25, 2025, Sapporo, Japan
Poster: Elena Hoster (The Chow and augmented Chow polynomials of uniform matroids)
Conference
New perspectives on hyperplane arrangements (website)
May 12-16, 2025, Bochum, Germany
Organizers: Gerhard Röhrle, Christian Stump
Spring School
The Dynkin Classification (website)
March 31-April 4, 2025, Bochum, Germany
Organizers: Karin Baur, Alexander Ivanov, Markus Reineke, Gerhard Röhrle, Christian Stump
ESI Workshop
Noncrossing partitions (website)
February 17-21, 2025, Erwin-Schrödinger Institut Vienna, Austria
Organizers: Adrian Celestino Rodriguez, Kurusch Ebrahimi-Fard, James Mingo, Martin Rubey, Eleni Tzanaki, Yannic Vargas
BIRS Workshop
Lattice Theory (website)
January 19-24, 2025, Banff International Research Station, Canada
Organizers: Nathan Williams, Emily Barnard, Cesar Ceballos, Colin Defant, Osamu Iyama
Workshop
Annual Meeting SPP2458 (website)
September 11-13, 2024, Osnabrück, Germany
Organizers: Paul Breiding, Martina Juhnke, Tim Römer
Invited speakers: Gennadiy Averkov, Karin Baur, Mareike Dressler, Alheydis Geiger, Giulio Salvatori, Lisa Seccia, Christian Stump, Martin Wahl, Martin Winter
Conference
FPSAC 2024 (website)
July 22-26, 2024, Bochum, Germany
Chair of the organizing committee: Christian Stump
Chairs of the program committee: Marni Mishna, Brendon Rhoades, Raman Sanyal
Invited speakers: Carolina Benedetti, Rosa Orellana, Lisa Sauermann, Michael Joswig, Nick Proudfoot, Kris Shaw, Satoshi Murai, Markus Reineke, Josephine Yu
Summer School
Algebraic Combinatorics (website)
July 15-19, 2024, MPI MiS Leipzig, Germany
Organizers: Sarah Brauner, Christian Stump, Bernd Sturmfels
Invited lecturers: Greta Panova, Chris Eur, Vic Reiner
MFO Workshop
Arrangements, Matroids and Logarithmic Vector Fields (website)
June 16-21, 2024, MFO Oberwolfach, Germany
Organizers: Takuro Abe, Graham Denham, Eva-Maria Feichtner, Gerhard Röhrle
Workshop
Combinatorial Coworkspace (website)
March 18-23, 2024, Kleinwalsertal, Austria
Organizers: Martina Juhnke-Kubitzke, Thomas Kahle, Raman Sanyal, Christian Stump
Conference
90th Séminaire Lotharingien de Combinatoire (website)
September 3-6, 2023, Bad Boll, Germany
Organizers: Christian Krattenthaler, Christian Stump
Invited lecturers: Ilse Fischer, Bertrand Eynard
Conference
FPSAC 2023 (website)
July 17-21, 2023, Davis, USA
Invited speakers: Karim Adiprasito, Jonah Blasiak, Melody Chan, Eric Fusy, Rei Inoue, Mohamed Omar, Sibylle Schroll, Anna Weigandt, Paul Zinn-Justin
Workshop
24 Hours of Combinatorial Synergies - Rundgespräch SPP 2458 (website)
June 28-29, 2023, Magdeburg, Germany
Organizers: Thomas Kahle, Christian Stump
Invited speakers: Paolo Benincasa, Sarah Brauner, Mareike Fischer, Alheydis Geiger, Frank Vallentin, Michael Walter
Conference
Brenti Fest & 89th Séminaire Lotharingien de Combinatoire
March 26-29, 2023, Bertinoro, Italy
Organizers: Riccardo Biagioli, Fabrizio Caselli, Christian Krattenthaler
Invited lecturer: Christian Stump
ICMS Workshop
Various Guises of Reflection Arrangements (website)
March 13-17, 2023, Edinburgh, Scotland
Organizers: Takuro Abe, Theo Douvropoulos, Misha Feigin, Christian Stump, Masahiko Yoshinaga
Speakers: Alessandro Arsie, Gwyn Bellamy, Guido Carlet, Michael Cuntz, Emanuele Delucchi, Aram Dermenjian, Galen Dorpalen-Barry, Theo Douvropoulos, Eleonore Faber, Eva-Maria Feichtner, Claus Hertling, Ivan Marin, Georges Neaime, Vic Reiner, Gerhard Röhrle, Kyoji Saito, Anne Shepler, Eric Sommers, Ian Strachan, Alexandru Suciu, Karoline Van Gemst, Alexander Veselov, Nathan Williams, Masahiko Yoshinaga.
Workshop
Research Data in Discrete Mathematics (website)
March 13-14, 2023, Leipzig, Germany
Organizers: Christiane Görgen, Martina Juhnke-Kubitzke, Thomas Kahle, Lars Kastner, Raman Sanyal, Christian Stump
Invited speakers: Yang-Hui He, Peter Paule, Kathlén Kohn, Antony Della Vecchina
Spring School
Real, Complex, and Symplectic Reflection Groups (website)
March 6-10, 2023, Bochum, Germany
Organizers: Georges Neaime, Gerhard Röhrle, Christian Stump
Invited lecturers: Götz Pfeiffer, Ulrich Thiel, Masahiko Yoshinaga
Invited colloquium talk
Matematiska kollokviet (website)
December 15, 2022, Linköping, Sweden
Speaker: Christian Stump
Title: Playing with combinatorial statistics
Dissertation defense
Vincent Umutabazi (thesis)
December 14, 2022, Linköping, Sweden
Supervisor: Axel Hultman
Opponent: Christian Stump
Conference
Kolloquium über Kombinatorik (website)
November 18-19, 2022, Paderborn, Germany
Organizer: Kai-Uwe Schmidt
Invited speakers: Maria Chudnovsky, Daniela Kühn, Bill Martin, Patrice Ossona de Mendez, Christian Stump
Workshop
Combinatorial Coworkspace (website)
March 19-27, 2022, Kleinwalsertal, Austria
Organizers: Martina Juhnke-Kubitzke, Thomas Kahle, Raman Sanyal, Christian Stump
Conference
Combinatorics and Representation Theory in Lausanne (website)
September 13-17, 2021, EPFL Lausanne, Switzerland
Organizer: Thomas Gerber
Invited speakers: Olga Azenhas, Maria Chlouveraki, Maud De Visscher, Maciej Dołęga, Olivier Dudas, Valentin Féray, Stéphane Gaussent, Eugenio Giannelli, Martina Lanini, Stéphane Launois, Philippe Nadeau, Bea Schumann, Petra Schwer, Christian Stump
Conference
86th Séminaire Lotharingien de Combinatoire (website)
September 5-8, 2021, Bad Boll, Germany
Organizers: Christian Krattenthaler, Christian Stump
Invited lecturers: Guillaume Chapuy, Martina Juhnke-Kubitzke
Conference Session
Discrete Mathematics and Theoretical Computer Science (website)
DMV Jahrestagung, September 14-17, 2020, Chemnitz, Germany
Organizers: Gennadiy Averkov, Christian Stump
Workshop
Combinatorial Coworkspace (website)
March 8-15, 2020, Kleinwalsertal, Austria
Organizers: Martina Juhnke-Kubitzke, Thomas Kahle, Raman Sanyal, Christian Stump
Workshop
Hyperplane Arrangements and Reflection Groups
September 23-27, 2019, Hanover, Germany
Organizers: Michael Cuntz, Gerhard Röhrle, Christian Stump
Invited speakers: Takuro Abe, Alex Dimca, Matt Douglass, Eva-Maria Feichtner, Misha Feigin, Lukas Kühne, Jean Michel, Tilman Möller, Paul Mücksch, Bernhard Mühlherr, Luis Paris, Götz Pfeiffer, Jiro Sekiguchi, Anne Shepler, Hiroaki Terao, Michele Torielli, Masahiko Yoshinaga
Conference
83rd Séminaire Lotharingien de Combinatoire (website)
September 1-4, 2019, Bad Boll, Germany
Organizers: Christian Stump, Christian Krattenthaler
Invited lecturers: Michael Cuntz, Anton Mellit
