Seminars and Talks 11:00 - 12:30, November 26, 2019 (Tuesday) R201, Astronomy-Mathematics Building, NTU Introduction to Sheaves and Symplectic Geometry (II) 13:00 - 15:00, November 26, 2019 (Tuesday) Room 408, College of Science, NUK Residually Finite Groups (II) 14:00 - 17:00, November 26, 2019 (Tuesday) R201, Astronomy-Mathematics Building, NTU Kuranishi Structure and Virtual Fundamental Cycle/chain Technique (II)