¼­¿ï´ë ÀÛ¿ë¼Ò ¼¼¹Ì³ª 2015 Nay 7: Masaki Izumi(Kyoto Univ.); The classification of fusion categories and operator algebras 2015 May 8: Masaki Izumi(Kyoto Univ.); Noncommutative Poisson boundaries