Events & Seminars

2015 Nov 15

Game theory & economics: Liad Blumrosen (HUJI), " (Almost) Efficient Mechanisms for Bilateral Trading (joint work with Shahar Dobzinski)"

3:30pm to 4:30pm

Location: 

Elath Hall, 2nd floor, Feldman Building, Edmond Safra Campus
Speaker: Liad Blumrosen, HUJI
Topic: (Almost) Efficient Mechanisms for Bilateral Trading (joint work with Shahar Dobzinski)
Place: Elath Hall, 2nd floor, Feldman Building, Edmond Safra Campus
Time: Sunday, November 15, 2015 at 4:00 p.m.
Refreshments available at 3:30 p.m.
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2015 Nov 29

Game theory & economics: Ran Spiegler (Tel Aviv University and University College London), "On the "Limited Feedback" Foundation of Boundedly Rational Expectations"

3:30pm to 4:30pm

Location: 

Elath Hall, 2nd floor, Feldman Building, Edmond Safra Campus
On the "Limited Feedback" Foundation of Boundedly Rational Expectations
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Location:
Elath Hall, 2nd floor, Feldman Building, Edmond J. Safra Campus
Dates:
Sunday, November 29, 2015 - 16:00
Lecturers:
Ran Spiegler
Tel Aviv University and University College London
Abstract:
2018 Jan 29

NT&AG: Shachar Carmeli (Weizmann Institute), "Higher Etale Obstructions for Quadratic Forms"

2:00pm to 3:00pm

Location: 

Room 70A, Ross Building, Jerusalem, Israel
Higher Etale obstructions are cohomological obstructions introduced by Yonatan Harpaz and Tomer Schlank for solutions of algebraic equations over a field. Their definition is based on the theory of relative etale homotopy type. In my talk I will explain the construction of relative etale homotopy type and the resulting obstruction theory.
I will also present the calculation of these obstructions for quadratic equations of the form a_1x_1^2 + ... + a_nx_n^2 = 1. This is a joint work with Edo Arad and Tomer Schlank.
2018 Jan 29

HD-Combinatorics Special day: Pseudo-randomness (organised by Uli Wagner)

10:00am to 5:00pm

Location: 

IIAS, Feldman Building, Givat Ram
10:00-11:00     Anna Gundert Uli Wagner - Quasirandomness and expansion for graphs

11:30-12:30     Anna Gundert Uli Wagner - Quasirandomness for hypergraphs

13:45- 14:45    Uli Wagner - Szemeredi's regularity lemma for dense graphs

15:00-16:00     Tamar Ziegler - Gowers uniformity norms

16:30-17:30     Anna Gundert Uli Wagner - Hypergraph regularity 
2017 Dec 24

Game Theory & Math Economics: Yonatan Aumann (Bar - Ilan) - "On Time Discounting, Impatience and Risk Aversion"

4:00pm to 4:30pm

Location: 

Elath Hall, 2nd floor, Feldman Building, Edmond J. Safra Campus
Time discounting is a ubiquitous assumption in economic literature. We (re)explore the foundations of such time preferences. "Impatience" is defined as a preferences for experiencing the better states sooner rather than later, even when there is no uncertainty associated with the future. We show that, assuming consistency and some weak stationarity assumptions, impatience is incompatible with a meaningful notion of a risk-attitude (risk aversion/love/neutrality).On the other hand, if there is uncertainty associated with the future then discounting necessarily emerges.
2017 Dec 10

Game Theory & Math Economics: Sergiu Hart (HUJI)

4:00pm to 4:30pm

Location: 

Elath Hall, 2nd floor, Feldman Building, Edmond J. Safra Campus
A unified integral approach to all the calibration results in the literature -- from regular probabilistic calibration to smooth deterministic calibration -- using simple "hairy" fixed point and minimax results.
2018 Jan 14

Game Theory & Math Economics: Harry Dankowicz (UIUC) "Emergent Task Differentiation on Network Filters"

4:00pm to 4:30pm

Location: 

Elath Hall, 2nd floor, Feldman Building, Edmond J. Safra Campus
Inspired by empirical observations on honey bee colonies, we analyze the emergence of task differentiation in a model complex system, characterized by an absence of hierarchical control, yet able to exhibit coordinated behavior and collective function. The analysis considers the steady-state response of a mechanical interaction network to exogenous resonant excitation.

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