Seminars and Talks 15:00 - 16:00, January 22, 2021 (Friday) broadcast in Room 440, Astro-Math Bldg., NTU, Online seminar Classifying Sections of Del Pezzo Fibrations 16:15 - 17:15, January 22, 2021 (Friday) broadcast in Room 440, Astro-Math Bldg., NTU, Online seminar Some Comparison Problems on Correspondences