Seminars and Talks 15:30 - 17:30, April 7, 2020 (Tuesday) R440, Astronomy-Mathematics Building, NTU L∞ Estimate on Stationary Linearized Boltzmann Equation with Non-isothermal Boundary 16:00 - 17:00, April 7, 2020 (Tuesday) R202, Astronomy-Mathematics Building, NTU Stabilities on Normal Projective Surfaces over Arbitrary Fields