Seminars and Talks 10:10 - 12:00, May 22, 2020 (Friday) U-webinar, Online seminar Dynamical Systems with One Observable: The Dual Theorem of The Observability 14:00 - 15:30, May 22, 2020 (Friday) R440, Astronomy-Mathematics Building, NTU Donaldson-Thomas Theory of Quantum Fermat Quintic Threefolds 16:00 - 17:00, May 22, 2020 (Friday) R440, Astronomy-Mathematics Building, NTU Dynamics of Continued Fractions and Conjecture of Mazur-Rubin Conferences, Workshops and Special Events May 20 - 22, 2020 2020 Spring Probability Workshop (Cancelled) May 21 - 23, 2020 2020 NCTS Workshop on Dynamical Systems (Postpone:TBA)