{{page>inc&noheader&nofooter}} I am visiting IRIF for the academic years 2021-2022 and 2022-2023 as part of sabbatic years, partially supported by Fondation Sciences Mathématiques de Paris ([[https://sciencesmaths-paris.fr|FSMP]]), Ecole Polytechnique ([[https://www.lix.polytechnique.fr|LIX]]), Institut de Recherche en Informatique Fondamentale ([[http://www.irif.fr|IRIF]]), and ANR project [[https://www.irif.fr/anr-ducat/index|DUCAT]]. For more information, please visit [[https://www.matem.unam.mx/~rajsbaum/|my personal pages]]