This page list all events and seminars that take place in the department this week. Please use the form below to choose a different week or date range.

BGU Probability and Ergodic Theory (PET) seminar

Slow entropy of higher rank abelian unipotent actions Online

Jun 3, 11:10—12:00, 2021, Online

Speaker

Daren Wei (The Hebrew University)

Abstract

We study slow entropy invariants for abelian unipotent actions U on any finite volume homogeneous space $G/\Gamma$. For every such action we show that the topological complexity can be computed directly from the dimension of a special decomposition of Lie(G) induced by Lie(U). Moreover, we are able to show that the metric complexity of the action coincides with its topological complexity, which provides a classification of these actions in isomorphic class. As a corollary, we obtain that the complexity of any abelian horocyclic action is only related to the dimension of G. This generalizes our previous rank one results from to higher rank abelian actions. This is a joint work with Adam Kanigowski, Philipp Kunde and Kurt Vinhage.

Arithmetic applications of o-minimality

TBA Online

Jun 8, 10:10—12:00, 2021, online

Speaker

Eitan Sayag (BGU)

אשנב למתמטיקה

אנליזה פוגשת אריתמטיקה Online

Jun 8, 16:10—17:30, 2021, מרשתת

Speaker

נדיה גורביץ'

Abstract

מכונת מזל מדפיסה שני מספרים שלמים אקראים. אם הם זרים - הנכם מקבלים 10 שקלים. מחיר המשחק הוא 6 ש”ח. האם כדאי לכם להשתתף?

נראה איך ניתן לנחש את התשובה בקלות ואז נוכיח אותה תוך כדי שימוש בפונקציות אריתמטיות

רשימות מהמפגש

Jerusalem - Be'er Sheva Algebraic Geometry Seminar

TBA

Jun 9, 15:00—16:30, 2021,

Speaker

Uri Brezner (HUJI)


Other Dates