פעילויות השבוע
BGU Probability and Ergodic Theory (PET) seminar
Effective equidistribution of horospherical flows in infinite volume Online
מרץ 11, 16:00—17:00, 2021, Online
מרצה
Nattalie Tamam (University of California, San Diego)
תקציר
Horospherical flows in homogeneous spaces have been studied intensively over the last several decades and have many surprising applications in various fields. Many basic results are under the assumption that the volume of the space is finite, which is crucial as many basic ergodic theorems fail in the setting of an infinite measure space. In the talk we will discuss the infinite volume setting, and specifically, when can we expect horospherical orbits to equidistribute. Our goal will be to provide an effective equidistribution result, with polynomial rate, for horospherical orbits in the frame bundle of certain infinite volume hyperbolic manifolds. This is a joint work with Jacqueline Warren.
Arithmetic applications of o-minimality
Analyticity, algebraicity and definability — on the o-minimal version of Chow‘s Theorem (cont.) Online
מרץ 16, 10:10—12:00, 2021, online
מרצה
Kobi Peterzil (Haifa)
אשנב למתמטיקה
תכונה T של קשדן ושימושיה Online
מרץ 16, 16:10—17:30, 2021, מרשתת
מרצה
יאיר גלזנר
תקציר
אתן סקירה קצרה על תכונה זו ועל השימושים הרבים והמפתיעים שלה בקומבינטוריקה, בגיאומטריה, בתורת החבורות ועוד.
Jerusalem - Be'er Sheva Algebraic Geometry Seminar
תב“ה
מרץ 17, 15:00—16:30, 2021,