Activities This Week
BGU Probability and Ergodic Theory (PET) seminar
Homomorphic operations over secret shares
Oct 22, 11:10—12:00, 2020, Online
Speaker
Dor Bitan (Ben-Gurion University)
Arithmetic applications of o-minimality
Definability and o-minimality Online
Oct 27, 10:00—12:00, 2020, online
Speaker
Assaf Hasson
אשנב למתמטיקה
סכומי מינקובסקי והתפשטות של מגיפות Online
Oct 27, 16:10—17:30, 2020, מרשתת
Speaker
תם מאירוביץ'
Abstract
בהרצאה נסביר מהו סכום מניקובסקי של תתי-קבוצות של חבורה, משפט מפורסם של Shapley–Folkman לגבי סכומי מינקובסקי וקמירות, ושימוש לגבי משפחה של מודלים (לא ממש מציאותיים) של התפשטות של מגפות.
Jerusalem - Be'er Sheva Algebraic Geometry Seminar
Derived categories and birationality
Oct 28, 15:00—16:30, 2020,
Speaker
Martin Olsson (UC Berkeley )
Abstract
I will discuss expectations and results around the following question: If $X$ and $Y$ are two smooth projective varieties with equivalent derived categories, when can one conclude that $X$ and $Y$ are birational? The study of Fourier-Mukai equivalences yields many examples of non-birational varieties with equivalent derived categories. On the other hand, it appears that by considering slightly more structure than just the derived categories one can conclude birationality in many cases. This is joint work with Max Lieblich.
Recording available here: https://us02web.zoom.us/rec/share/U7Zp8zsHQrL4WGyhHAx9sSLRNwEPoFAp2AnvK5_lvC4M0_5aByj6YMYM00_zdsiG.Pr97s-6WdDsEx0qM