פעילויות השבוע
PRO (Presenting Results of Others) Seminar
BGU Probability and Ergodic Theory (PET) seminar
In memoriam David Newman
יוני 25, 11:10—12:00, 2026, -101
מרצה
Moshe Newman
תקציר
I will talk a bit about my father, the people who helped him mathematically here and elsewhere, and i will describe some open problems in combinatorics and number theory that he left behind.
Excellence Day 2026 Online
יוני 30, 13:00—17:00, 2026, -101
- 13:00-14:00 Lunch buffet on site
- 14:05 Greetings by Prof. Gaby Lemcoff, Dean of Natural Sciences.
- 14:10 Opening remarks: Michael Lin, Daniel Sternheimer,
- 14:20 Award of Excellence certificates to Ph.D. students Guy Shtotland and Liran Ron by Prof. Orna Braun-Lewensohn, Dean of Kreitman school of advanced studies and Dean Lemcoff .
- 14:30 Honorary lecture: Prof. Benjy Weiss, (Hebrew University) The isomorphism problem in ergodic theory
- 15:40 Prof. Yair Hartman will present the prizes for the 2026 Mathematics video competition to Itamar Har Even (first place) and Shahar Khudadadi (second place).
- 15:45 Presentation by Itamar Har Even of the winning video.
- 15:50 Prof. Tom Meyerovitch, Introducing the recipient of the Noriko Sakurai prize for excellent Post-Doc. Prize presented by Prof. Sternheimer.
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15:55 Lecture by the 2026 Noriko Sakurai prize recipient Dr. Aidan Young
Title: Covering radii and games on graphs
Abstract: The covering radius of a shift space is a quantity arising from the study of error-correcting codes in information theory. We will describe how these quantities can be computed by game-theoretic methods, translating the quantity into the payout of a two-player zero-sum game on graphs. Based on joint work with Tom Meyerovitch
- 16:20 Prof. Gili Golan, introducing Mr. Eitan Sapir, the recipient of the Zabey- Harzfeld Prize for excellent Master thesis. Prize presented by Prof. Lin.
- 16:25 Professor Inna Entova- Eizenbod will present recognition certificates by the department to the BGU team to the 2025 International Math. Competition for students. Gilad Ofek (won third prize), Yarden Gur Arieh, Roei Sharifie and Iftah Nave (received a commendation).
- 16:30 Prof. Inna Entova- Eizenbod and Mrs. Adaya Cohen will present the Mia Cohen prize for high-school student in the department to Yasmin Ifrah
קולוקוויום
GAGA theorem for quasihomogeneous singularities
יולי 1, 12:30—13:30, 2026, Math -101
מרצה
Misha Verbitsky (IMPA)
תקציר
In 1956, J.-P. Serre published the famous paper ”Géométrie algébrique et géométrie analytique“, showing that most complex analytic objects (such as subvarieties, meromorphic functions, coherent sheaves), if defined on algebraic varieties, arise from their counterparts which are defined algebraically. Now this result is known as GAGA theorem. A complex variety is called quasi-homogeneous if it is equipped with an invertible complex analytic contraction. I will show that this contraction defines a canonical algebraic structure on this variety, bringing on the rest of the GAGA framework. This is a joint work with Liviu Ornea.