# Eventss

# Dvoretzky Lectures 2020: Sylvia Serfaty (Courant Institute of Mathematical Sciences)

# Logic Seminar - Christian d'Elbée

## Location:

**Christian d'Elbée**will speak about generic generic abelian varieties.

**Generic**

**generic**

**abelian varieties.**

__Abstract:__

I will present work in progress in a new NSOP1 nonsimple theory: the expansion of an abelian variety by a generic subgroup, under some conditions on the endomorphism ring.

# Game Theory Seminar: Naftali Tishby "Information Theory of Deep Learning"

## Location:

In the past several years we have developed a comprehensive theory of large scale learning with Deep Neural Networks (DNN), when optimized with Stochastic Gradient Decent (SGD). Read more about Game Theory Seminar: Naftali Tishby "Information Theory of Deep Learning"

# (no talk)

# Konstantin Golubev (ETH) - On non-autocorrelated functions on a hyperbolic surface

## Location:

# Basic Notions: Jake Solomon "Enumerative geometry over an arbitrary field"

## Location:

# Basic Notions: Jake Solomon (HUJI), "Enumerative geometry over an arbitrary field"

## Location:

# Colloquium: Gil Kalai (HUJI) - Some recent advances in combinatorics

## Location:

# Logic Seminar - Tingxiang Zou

## Location:

**Tingxiang Zou**will speak about:

**Pseudofinite difference fields**

# Basic Notions: Eran Nevo (HUJI) "Algebraic Combinatorics a la Stanley".

## Location:

The basic idea is to associate with a combinatorial object Xan algebraic structure A(X), and derive from algebraic properties of A(X)combinatorial consequences for X. For example, Stanley's proof of the UpperBound Theorem for simplicial spheres uses the Cohen-Macaulay property of theface ring associated with a simplicial complex.

We will review the basics of Stanley's theory, illustrate themon examples, and time permitting, discuss more recent advances of this theory.

(All needed terms and background will be given in thetalk.)

# Geodesic triangles in the hyperbolic plane: Rita Gitik, University of Michigan

## Lecturer:

## Location:

We prove that any side of any triangle formed by distinct lifts of c in the hyperbolic plane is shorter than c.

The talk will be presented for advanced undergraduate and beginning graduate students.

# NT & AG Lunch: Michael Temkin, "Resolution of singularities, II"

## Location:

In fact, the same resolution algorithm can be described in various settings, including schemes, algebraic varieties or complex analytic spaces.