2018 Jun 12

# Dynamics Lunch: No semimar

12:00pm to 1:00pm

## Location:

Manchester lounge
2018 Apr 30

# High-Dim Combinatorics: Stefan Glock, "Designs via iterative absorption"

9:00am to 10:45am

Speaker: Stefan Glock (U. Birmingham)
Title: Designs via iterative absorption
2018 May 28

# NT&AG: Max Gurevich (University of Singapore), "Branching laws for non-generic representations"

2:00pm to 3:00pm

## Location:

Room 70A, Ross Building, Jerusalem, Israel
The celebrated Gan-Gross-Prasad conjectures aim to describe the branching behavior of representations of classical groups, i.e., the decomposition of irreducible representations when restricted to a lower rank subgroup.
2018 Apr 29

# GAME THEORY AND MATHEMATICAL ECONOMICS RESEARCH SEMINAR:Michal Feldman, Tel Aviv University "Interdependent Values without Single-Crossing (Joint work with Alon Eden, Amos Fiat and Kira Goldner)"

1:30pm to 2:30pm

## Location:

Elath Hall, 2nd floor, Feldman Building, Edmond Safra Campus

Abstract:

We consider a setting where an auctioneer sells a single item to n potential agents with {\em interdependent values}. That is, each agent has her own private signal, and the valuation of each agent is a function of all n private signals. This captures settings such as valuations for oil fields, broadcast rights, art, etc.

2018 Apr 25

# Special Talk : Justin Noel (University of Regensburg) - "Blue-shift and thick tensor ideals"

## Lecturer:

Justin Noel (University of Regensburg)
2:30pm to 3:30pm

## Location:

Shprinzak 27

Abstract:

I will discuss a recent generalization of Kuhn's Blue-shift theorem about Tate cohomology. Combining this result with work of Arone, Dwyer, and Lesh we resolve a conjecture of Balmer and Sanders and classify the thick tensor ideals of compact genuine $A$-spectra, where $A$ is a finite abelian group. This is joint work with Tobias Barthel, Markus Hausmann, Niko Naumann, Thomas Nikolaus, and Nathaniel Stapleton.

2018 Jun 05

# Dynamics Lunch: Hagai Lavner (Huji)

12:00pm to 1:00pm

## Location:

Manchester lounge
2018 May 08

# Dynamics Seminar: Tsviqa Lakrec (Huji)

12:00pm to 1:00pm

## Location:

Manchester lounge
2018 Jun 19

2:15pm to 3:15pm

2018 Apr 26

# Basic Notions: Alex Lubotzky "From expander graphs to high dimensional expanders: a road map"

4:00pm to 5:30pm

## Location:

Math Hall 2
Expander graphs have been a topic of great interest in the last 50 years for mathematicians and computer scientists. In recent years a high dimensional theory is emerging.  We will describe some of its main directions and questions.
2018 May 16

# Analysis Seminar: Nadav Dym (WIS)

12:00pm to 1:00pm

Ross Building
2018 May 29

# Dynamics Lunch: Matan Seidel (Huji)

12:00pm to 1:00pm

## Location:

Manchester lounge
2018 May 15

2:15pm to 3:15pm

2018 Apr 16

# Special talk: Yonatan Harpaz (Paris 13) - "Towards a universal property for Hermitian K-theory"

## Lecturer:

Yonatan Harpaz (Paris 13)
4:30pm to 5:30pm

## Location:

Ross 70

Abstract: Hermitian K-theory can be described as the "real" analogue of algebraic K-theory, and plays a motivic role similar to the role played by real topological K-theory in classical stable homotopy theory. However, the abstract framework surrounding and supporting Hermitian K-theory is less well understood than its algebraic counterpart, especially in the case when 2 is not assumed to be invertible in the ground ring.

2018 Jun 27

# Analysis Seminar: Barry Simon (Caltech) "Heinävarra’s Proof of the Dobsch–Donoghue Theorem"

12:00pm to 1:00pm

## Location:

Ross Building, Room 70
Abstract: In 1934, Loewner proved a remarkable and deep theorem about matrix monotone functions. Recently, the young Finnish mathematician, Otte Heinävarra settled a 10 year old conjecture and found a 2 page proof of a theorem in Loewner theory whose only prior proof was 35 pages. I will describe his proof and use that as an excuse to discuss matrix monotone and matrix convex functions including, if time allows, my own recent proof of Loewner’s original theorem.
2018 May 29

2:15pm to 3:15pm

Ross 70