Recent Events

Algebra & number theory day. abstracts.pdf PosterANT.PDF Jun 23, 11:3016:30, 2016, Seminar room 101, Math building (58), BGU. Star
Speakers
 Christian MAIRE – University of FrancheComté (France)
 Eliyahu MATZRI – BarIlan University (Israel)
 Thomas WEIGEL – University of MilanoBicocca (Italy)
Program
 11:30 11:40

Opening with Prof. M. Cohen
 11:40 12:40

C. Maire  Infinite extensions of number fields, analytic prop groups and fixed points
 12:45 13:45

Lunch  offered to all participants
 14:00 15:00

E. Matzri  One sided genus of a central simple algebra
 15:00 15:30

Coffee break
 15:30 16:30

T. Weigel  Koszul prop groups

Award of the Noriko Sakurai Postdoctoral Fellowship for 2016. poster.pdf Jun 7, 14:0016:00, 2016, Seminar room 101, Math building (58), BGU. Star

School on Polish Groups. May 2227, 2016, Midreshet SdeBoker. Star
The School will focus on Polish Groups. General theory, examples, representations of discrete groups with Polish targets, and applications to discrete groups, geometry and dynamics. The three main courses will be:
MiniCourses
 General theory of Polish groups Jullien Melleray, Christian Rosendal and Todor Tsankov.
 Algebraic groups over Polish fields. Jean Lécureux and Bertrand Rémy.
 Infinite dimensional Lie groups and their symmetric spaces Bruno Duchesne.

ערב חשיפה לתארים מתקדמים. prog.pdf Apr 12, 17:0018:30, 2016, חדר סמינרים (101), בניין 58.

Algebraic Combinatorics day. klin.pdf Mar 29, 2016, Room 101, Math building (58), BGU. Star
In honor of Prof. Mikhail Klin, on the occasion of his retirement
Past Events

Special Seminar. Jun 16, 10:0011:00, 2015, Room 101, BGU.
Speaker: Antoine Ducros (Paris 6)
Title: Stability of Gauss valuations
Abstract:
A valued field $(k,.)$ is said to be stable (this terminology has no link with modeltheoretic stability theory) if every finite extension $L$ of $k$ is defectless, i.e., satisfies the equality $\sum e_vf_v=[L:k]$, where $v$ goes through the set of extensions of $.$ to $L$, and where $e_v$ and $f_v$ are the ramification and inertia indexes of $v$. The purpose of my talk is to present a new proof (which is part of current joint reflexions with E. Hrushovski and F. Loeser) of the following classical fact (Grauert, Kuhlmann, Temkin,…) : let $(k,.)$ be a stable valued field, and let $(r_1,\dots,r_n)$ be elements of an ordered abelian group $G$ containing $k^*$. Let $.’$ be the $G$valued valuation on $k(T_1,\dots,T_n)$ that sends $\sum a_I T^I$ to $\max_I a_I\cdot r^I$. Then $(k(T_1,\dots,T_n),.’)$ is stable too.
Our general strategy is purely geometric, but the proof is based upon modeltheoretic tools coming from model theory (which I will first present; no knowledge of model theory will be assumed). In particular, it uses in a crucial way a geometric object defined in modeltheoretic terms that Hrushovski and Loeser attach to a given $k$variety $X$, which is called its stable completion; the only case we will have to consider is that of a curve, in which the stable completion has a very nice modeltheoretic property, namely the definability, which makes it very easy to work with.

Operator algebras and operator theory. May 13, 11:1015:30, 2015, BGU.
Joint Operator Algebras and Operator Theory Seminar, bringing together people from BenGurion University, the Technion, Tel Aviv University and the University of Haifa

Award of the Noriko Sakurai Postdoctoral Fellowship. May 12, 2015, BGU. Star

Distinguished Lecture Series: Prof. Ilijas Farah, York University, Canada. May 718, 2015, BGU.

Ergodic Theorems and Applications in Probability. May 38, 2015, Eilat. Star

Action NOW. Mar 24, 2015, BGU. Star

The Moshe Flato Lecture Series 2015. Mar 12, 2015, BGU.

Workshop on Generalized Cohomology. Feb 812, 2015, Sde Boker. Star

TRATC2014  Tropicalization, Realization, and AlgebraicTropical Correspondence. Sep 28Oct 3, 2014, Eilat. Star

Award of the Noriko Sakurai Postdoctoral Fellowship. May 20, 2014, BGU. Star

30th European Workshop on Computational Geometry (EuroCG 2014). Mar 35, 2014, Ein Gedi. Star

Workshop on the Central Limit Theorem. Jul 2, 2013, BenGurion University, math. dept. building. Star

Interactions between Logic, Topological structures and Banach spaces theory. May 1924, 2013, Eilat. Star

Action Now Seminar: Mostow and Rigidity. May 7, 2013, BenGurion University Math dept. building. Star

Workshop on Algebraic, Analytic, and Tropical Geometry (AATG2013). Apr 28May 3, 2013, Kibbutz Ein Gedi. Star

Mini conference in operator algebras. Apr 910, 2013, BGU. Star

Spring School on Group C*algebras. Mar 1721, 2013, Sde Boker. Star

Workshop on C*algebras and Noncommutative Dynamics. Mar 1114, 2013, Sde Boker. Star

Dynamics on parameter spaces 2013. Jan 27Feb 1, 2013, Sde Boker.

Award of the Noriko Sakurai Postdoctoral Fellowship for 2013. Dec 25, 2012, BGU. Star

The Moshe Flato Lecture Series 2011. Mar 10, 2011, BGU.

The Moshe Flato Lecture Series 2008. Nov 27, 2008, BGU.

The Moshe Flato Lecture Series 2007. Mar 20, 2007, BGU.

The Moshe Flato Lecture Series 2004. Nov 25, 2004, BGU.

The Moshe Flato Lecture Series 2002. Nov 28, 2002, BGU.