[Winter time:] UK, Portugal: 15:00; Spain, Italy, France, etc.: 16:00
For e-mail notifications of talks, please register your e-mail HERE.
157. 16/02/2026 Davide Ferri (University of Torino, Italy)
Title: From sets to quivers: oidification and the Yang-Baxter equation
Abstract: The Yang-Baxter equation, or braid relation, can be defined in any monoidal category. In the category Set, much is known about its solutions. In this seminar, I describe the monoidal category Quiv_\Lambda of quivers over a fixed set of vertices \Lambda. I introduce the philosophy called "oidification", which turns sets into quivers, groups into groupoids, algebras into algebroids, etc. Finally, I give an overview of the theory of the Yang-Baxter equation in Quiv_\Lambda, why it is relevant, what still works as in Set (and what works better than in Set!), and how it relates to the theory of partial solutions and partial algebraic structures.
Future talks:
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