¼­¿ï´ë ÀÛ¿ë¼Ò ¼¼¹Ì³ª 2012 Apr 5: Yasuyuki Kawahigashi(Univ. of Tokyo); Conformal field theory and noncommutative geometry 2012 Apr 6: Yasuyuki Kawahigashi(Univ. of Tokyo); Conformal field theory and subfactors