| Samuele Anni | Aix-Marseille Université | 20.07.2023 – 30.07.2023 |
| Rebecca Bellovin | University of Glasgow | 11.06.2023 – 18.08.2023 |
| Alexander Bertoloni Meli | University of Michigan | 11.06.2023 – 01.07.2023 |
| Guido Bosco | Sorbonne Université | |
| George Boxer | Imperial College London | 07.05.2023 – 12.05.2023 |
| George Boxer | Imperial College London | 02.07.2023 – 21.07.2023 |
| George Boxer | Imperial College London | 06.08.2023 – 12.08.2023 |
| Christophe Breuil | Département de Mathématiques Bâtiment 307 | 08.07.2023 – 15.07.2023 |
| Alina Bucur | UCSD | 12.06.2023 – 18.08.2023 |
| Jakob Burgi | Universität Heidelberg | 30.07.2023 – 18.08.2023 |
| Francesco Calegari | University of Chicago | 09.07.2023 – 15.07.2023 |
| Ana Caraiani | Imperial College London | 02.05.2023 – 18.08.2023 |
| Charlotte Chan | University of Michigan | 11.06.2023 – 17.06.2023 |
| Ryan Chen | Massachusetts Institute of Technology | 01.08.2023 – 18.08.2023 |
| Kwangho Choiy | Southern Illinois University | 21.05.2023 – 03.06.2023 |
| Kwangho Choiy | Southern Illinois University | 11.06.2023 – 17.06.2023 |
| Kwangho Choiy | Southern Illinois University | 06.08.2023 – 12.08.2023 |
| Pierre Colmez | CNRS | 14.05.2023 – 15.07.2023 |
| Patrick Daniels | University of Michigan, Ann Arbor | 06.08.2023 – 12.08.2023 |
| Jean-François Dat | Sorbonne Université | 05.06.2023 – 16.06.2023 |
| Héctor Del Castillo | Universidad de Santiago de Chile | 02.05.2023 – 13.05.2023 |
| Gabriel Dospinescu | UMPA ENS LYON | 15.05.2023 – 20.06.2023 |
| Andrea Dotto | University of Chicago | 04.06.2023 – 18.08.2023 |
| Laurent Fargues | CNRS / Institut de mathématiques de Jussieu | 02.05.2023 – 18.08.2023 |
| Tony Feng | Berkeley University | 30.05.2023 – 15.08.2023 |
| Jessica Fintzen | Universität Bonn | 02.05.2023 – 18.08.2023 |
| Francesc Fite | Universitat de Barcelona | 24.07.2023 – 30.07.2023 |
| Chenji Fu | | |
| Hao Fu | Université de Strasbourg | 03.05.2023 – 27.05.2023 |
| Hui Gao | Southern University of Science and Technology, | 11.06.2023 – 08.07.2023 |
| Quentin Gazda | École Polytechnique - Centre de Mathématique Laurent Schwartz | 09.07.2023 – 22.07.2023 |
| Toby Gee | Imperial College London | 08.05.2023 – 12.05.2023 |
| Toby Gee | Imperial College London | 03.07.2023 – 14.07.2023 |
| Sally Gilles | MPIM Bonn | |
| Ian Gleason | Universität Bonn | |
| Daniel Gulotta | MSRI / Boston University | 11.06.2023 – 24.06.2023 |
| Linus David Hamann | Princeton University | 01.06.2023 – 18.08.2023 |
| Michael Harris | Columbia University | 07.06.2023 – 16.06.2023 |
| Eugen Hellmann | Universität Münster | 15.05.2023 – 30.06.2023 |
| Valentin Hernandez | LMO, Orsay, Université Paris-Saclay | 02.05.2023 – 01.07.2023 |
| Bence Sandor Hevesi | Universität Bonn | |
| Sean Howe | University of Utah | 06.05.2023 – 15.07.2023 |
| Sean Howe | University of Utah | 06.08.2023 – 14.08.2023 |
| Naoki Imai | Graduate School of Mathematical Sciences, The University of Tokyo | 02.05.2023 – 17.06.2023 |
| Naoki Imai | Graduate School of Mathematical Sciences, The University of Tokyo | 06.08.2023 – 12.08.2023 |
| Louis Jaburi | Universität Bonn | |
| Tasho Kaletha | University of Michigan | 27.05.2023 – 28.06.2023 |
| Tasho Kaletha | University of Michigan | 27.07.2023 – 18.08.2023 |
| Kalyani Kansal | Johns Hopkins University | 03.05.2023 – 30.06.2023 |
| Kiran Kedlaya | University of California San Diego | 02.06.2023 – 19.08.2023 |
| Youshua Kesting | Universität Bonn | |
| Chandrashekhar Khare | UCLA | 06.08.2023 – 13.08.2023 |
| Dongryul Kim | Stanford University | 02.05.2023 – 13.05.2023 |
| Mark Kisin | Harvard University | 05.08.2023 – 12.08.2023 |
| Teruhisa Koshikawa | Research Institute for Mathematical Sciences, Kyoto University | 02.05.2023 – 08.07.2023 |
| Teruhisa Koshikawa | Research Institute for Mathematical Sciences, Kyoto University | 01.08.2023 – 18.08.2023 |
| Kai-Wen Lan | University of Minnesota, Twin Cities | 11.06.2023 – 21.06.2023 |
| Kai-Wen Lan | University of Minnesota, Twin Cities | 04.08.2023 – 17.08.2023 |
| Daniel Le | Purdue University | 11.06.2023 – 14.07.2023 |
| Arthur-César Le Bras | CNRS | 07.05.2023 – 18.08.2023 |
| Bao Le Hung | Northwestern University | 11.06.2023 – 29.07.2023 |
| Heejong Lee | University of Toronto | 02.05.2023 – 13.05.2023 |
| Siyan Li-Huerta | Harvard University | 31.05.2023 – 22.06.2023 |
| Chen-wei (Milton) Lin | Johns Hopkins University | 06.05.2023 – 13.05.2023 |
| Zeyu Liu | University of California San Diego | 02.05.2023 – 17.06.2023 |
| Judith Ludwig | Universität Heidelberg | 07.05.2023 – 12.05.2023 |
| Yi Luo | National University of Singapore | 06.08.2023 – 12.08.2023 |
| Akhil Mathew | University of Chicago | 18.06.2023 – 08.07.2023 |
| Vaughan McDonald | Stanford University | 07.05.2023 – 20.05.2023 |
| Yoichi Mieda | The University of Tokyo | 23.07.2023 – 18.08.2023 |
| Yutaro Mikami | The university of Tokyo | 07.05.2023 – 13.05.2023 |
| Yutaro Mikami | The university of Tokyo | 23.07.2023 – 18.08.2023 |
| Sophie Morel | ENS de Lyon | 02.05.2023 – 14.06.2023 |
| Sophie Morel | ENS de Lyon | 06.08.2023 – 12.08.2023 |
| Stefano Morra | Laboratoire d'Analyse, Géométrie, Algèbre | 11.06.2023 – 24.06.2023 |
| Stefano Morra | Laboratoire d'Analyse, Géométrie, Algèbre | 02.07.2023 – 15.07.2023 |
| James Newton | University of Oxford | 07.05.2023 – 12.05.2023 |
| James Newton | University of Oxford | 23.07.2023 – 18.08.2023 |
| Tuan Ngo Dac | University of Caen Normandy | 23.07.2023 – 18.08.2023 |
| Kieu Hieu Nguyen | WWU Münster | 24.07.2023 – 28.07.2023 |
| Wieslawa Niziol | CNRS/Sorbonne Univiversité | 14.05.2023 – 15.07.2023 |
| Kazuma Ohara | University of Tokyo | |
| Luis Santiago Palacios | Universidad de Santiago de Chile | 02.05.2023 – 13.05.2023 |
| Lue Pan | Princeton University | 07.05.2023 – 13.05.2023 |
| Chol Park | Ulsan National Institute of Science and Technology | 10.06.2023 – 16.06.2023 |
| Vytautas Paskunas | Universität Duisburg-Essen | 02.05.2023 – 25.06.2023 |
| Vytautas Paskunas | Universität Duisburg-Essen | 01.07.2023 – 16.07.2023 |
| Vytautas Paskunas | Universität Duisburg-Essen | 04.08.2023 – 18.08.2023 |
| Hao Peng | Massachusetts Institute of Technology | 02.05.2023 – 13.05.2023 |
| Alexander Petrov | MPIM Bonn | |
| Vincent Pilloni | Université Paris Saclay | 07.05.2023 – 12.05.2023 |
| Vincent Pilloni | Université Paris Saclay | 02.07.2023 – 21.07.2023 |
| Vincent Pilloni | Université Paris Saclay | 06.08.2023 – 11.08.2023 |
| Catherine Ray | Northwestern University | 03.05.2023 – 12.05.2023 |
| Juan Esteban Rodríguez Camargo | MPIM Bonn | |
| Joaquin Rodrigues Jacinto | Université Paris-Saclay | 12.06.2023 – 16.06.2023 |
| Soumyadip Sahu | Tata Institute of Fundamental Research | 02.05.2023 – 27.05.2023 |
| David Savitt | Johns Hopkins University | 11.06.2023 – 01.07.2023 |
| David Savitt | Johns Hopkins University | 16.07.2023 – 22.07.2023 |
| David Savitt | Johns Hopkins University | 30.07.2023 – 14.08.2023 |
| Peter Scholze | Max-Planck-Institut für Mathematik | 02.05.2023 – 18.08.2023 |
| Benjamin Schraen | Université Paris Saclay | 01.05.2023 – 01.07.2023 |
| David Schwein | Universität Bonn | |
| Sug Woo Shin | UC Berkeley | 23.07.2023 – 18.08.2023 |
| Maarten Solleveld | Radboud Universiteit | 18.06.2023 – 23.06.2023 |
| Reinier Sorgdrager | Université Paris-Saclay | 02.05.2023 – 27.05.2023 |
| Matthias Strauch | Indiana University | 03.05.2023 – 01.06.2023 |
| Matthias Strauch | Indiana University | 06.08.2023 – 18.08.2023 |
| Benoit Stroh | Sorbonne Université | 24.07.2023 – 28.07.2023 |
| Longke Tang | Princeton University | 02.05.2023 – 18.08.2023 |
| Yichao Tian | Morningside Center of Mathematics | 30.07.2023 – 11.08.2023 |
| Thibaud van den Hove | TU Darmstadt | 02.05.2023 – 27.05.2023 |
| Yakov Varshavsky | The Hebrew University of Jerusalem | 19.07.2023 – 18.08.2023 |
| Eva Viehmann | Universität Münster | 08.05.2023 – 11.05.2023 |
| Eva Viehmann | Universität Münster | 05.06.2023 – 08.06.2023 |
| Eva Viehmann | Universität Münster | 13.06.2023 – 16.06.2023 |
| Eva Viehmann | Universität Münster | 03.07.2023 – 06.07.2023 |
| Yingying Wang | Universität Duisburg-Essen | 02.05.2023 – 17.06.2023 |
| Zhixiang Wu | University of Münster | 02.05.2023 – 27.05.2023 |
| Zijian Yao | University of Chicago | 15.05.2023 – 15.08.2023 |
| Alexander Youcis | Graduate School of Mathematical Sciences, The University of Tokyo | 10.06.2023 – 12.08.2023 |
| Jize Yu | The Chinese University of Hong Kong | 02.05.2023 – 18.08.2023 |
| Sarah Zerbes | ETH Zürich | 06.08.2023 – 12.08.2023 |
| Robin Zhang | Columbia University | 20.07.2023 – 18.08.2023 |
| Yuting Samanda Zhang | The University of Chicago | 07.05.2023 – 27.05.2023 |
| Xinwen Zhu | Stanford University | 07.05.2023 – 13.05.2023 |
| Xinwen Zhu | Stanford University | 06.08.2023 – 12.08.2023 |
| Yihang Zhu | University of Maryland College Park | 30.07.2023 – 12.08.2023 |
| Noam Zimhoni | Hebrew University of Jerusalem, Israel | 02.05.2023 – 27.05.2023 |
| Konrad Zou | Universität Bonn | |
