[Winter time:] UK, Portugal: 15:00; Spain, Italy, France, etc.: 16:00
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156. 09/02/2026 Hans Cuypers (Eindhoven University of Technology, Netherlands)
Title: Every group is the automorphism group of a simple algebra
Abstract: Popov raised the question of whether each finite group is the automorphism group of a finite-dimensional simple algebra. He and Gordeev provided an affirmative answer for sufficiently large enough fields, not only for finite groups, but also for algebraic groups. We will show that for each field F and each (finite) group G, there are infinitely many (finite) dimensional simple algebras with G as automorphism group. If F has at least 4 elements, the algebras can be commutative as well as non-commutative.
Future talks:
157. 16/02/2026 Davide Ferri (University of Torino, Italy)
158. 23/02/2026 Saikat Goswami (Institute for Advancing Intelligence, India)
159. 02/03/2026 Ilan Levin (Bar Ilan University, Israel)
160. 09/03/2026 Lucia Bagnoli (Sapienza University of Rome, Italy)
161. 16/03/2026 Carsten Dietzel (University of Caen Normandy, France)
162. 23/03/2026 István Heckenberger (Philipps University Marburg, Germany)
163. 30/03/2026 Willian Franca (Federal University of Juiz de Fora, Brazil)
164. 06/04/2026 Rong Tang (Jilin University, China)
165. 13/04/2026 Maria Ferrara (Pegaso University, Italy)
166. 20/04/2026 Michael Lau (Laval University, Canada)
167. 27/04/2026 Abdenacer Makhlouf (University of Haute Alsace, France)
168. 04/05/2026 Per Bäck (Mälardalen University, Sweden)
169. 11/05/2026 Krzysztof Radziszewski (University of Białystok, Poland)
170. 18/05/2026 Ágota Figula (University of Debrecen, Hungary)
171. 25/05/2026 Andrés Pérez-Rodríguez (University of Santiago de Compostela, Spain)
172. 01/06/2026 Geoffrey Powell (University of Angers, France)
173. 08/06/2026 Ivan Dimitrov (Queen’s University, Canada)
174. 15/06/2026 Rinat Kashaev (University of Geneva, Switzerland)
175. 22/06/2026 María Cueto-Avellaneda (University of Murcia, Spain)
176. 29/06/2026 Michael Kinyon (University of Denver, USA)
177. 06/07/2026 Atabey Kaygun (Istanbul Technical University, Turkey)
178. 13/07/2026 Marco Castelli (University of Salento, Italy)
179. 20/07/2026 Yannic Vargas (CUNEF University, Spain)
180. 27/07/2026 Marijana Butorac (University of Rijeka, Croatia)
181. 03/08/2026 Elad Paran (The Open University of Israel, Israel)
182. 10/08/2026 Diogo Diniz (Federal University of Campina Grande, Brazil)
183. 17/08/2026 Lực Ta (University of Pittsburgh, USA)
184. 24/08/2026 Jethro van Ekeren (Institute of Pure and Applied Mathematics, Brazil)
185. 31/08/2026 Silvia Properzi (Vrije Universiteit Brussel, Belgium)
186. 07/09/2026 Quentin Ehret (New York University Abu Dhabi, United Arab Emirates)
Ivan Kaygorodov • Salvatore Siciliano • Mykola Khrypсhenko • Jobir Adashev