# Events & Seminars

# Amitsur Algebra: Michael Larsen (Indiana U)

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# Dynamics & probability: Paul Nelson (ETH) - Microlocal lifts and quantum unique ergodicity on GL(2,Q_p)

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# Dynamics & probability: Elon Lindenstrauss (Mean dimension and embedding of Z^d actions)

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# Michael Farber: "Robot motion planning and equivariant Bredon cohomology"

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Abstract: The motion planning problem of robotics leads to an interesting invariant of topological spaces, TC(X), depending on the homotopy type of X = the configuration space of the system. TC(X) is an integer reflecting the complexity of motion planning algorithms for all systems (robots) having X as their configuration space. Methods of algebraic topology allow to compute or to estimate TC(X) in many examples of practical interest. In the case when the space X is aspherical the number TC(X) depends only on the fundamental group of X. Read more about Michael Farber: "Robot motion planning and equivariant Bredon cohomology"

# HD-Combinatorics Special Day: Samplers in Computer Science (organized by Amnon Ta-Shma)

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All talks will be given by

**Amnon Ta-Shma**.

10:00-11:00 - The sampling problem and some equivalent formulations

11:30-12:30 - A basic "combinatorial" construction

14:00-14:45 - Algebraic constructions of randomness condensers

15:15-16:00 - Structured sampling

Program:

1. 10:00-11:00 - The sampling problem and some equivalent formulations.

**Abstract:**

We will first define Samplers, and the parameters that

one usually tries to optimize: accuracy, confidence, query complexity

# Colloquium: Gilles Zemor (Université de Bordeaux) - "Additive Combinatorics in Field Extensions"

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# T&G: Semyon Alesker (Tel Aviv University), Calabi type problem for Monge-Ampere equations on HKT manifolds

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# Game Theory & Math Economics: Gilad Bavly and Ron Peretz (Bar-Ilan) - "Limits of Correlation with Bounded Complexity"

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# Game Theory & Math Economics: Abraham Neyman (HUJI) - "Additive valuations of streams of payoffs that obey the time-value of money principle: Characterization and robust optimization"

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# Game Theory & Math Economics: Talia Einhorn (Tel Aviv University & Ariel University) - "Israel's Legal Infrastructure – walking on thin ice"

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# Game Theory & Math Economics: Sergiu Hart (HUJI) - "Calibrated Forecasts, Leaks, and Game Equilibria" (joint work with Dean P. Foster)

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# Game Theory & Math Economics: Jacob (Kobi) Glazer (Tel Aviv University) - "Has the National Health Insurance Law Run its Course?"

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The National Health Insurance Law is operated through several economic mechanisms that are meant to implement its vision. In this lecture we will present the main flaws of some of these mechanisms and propose ways to fix them. The lecture will be in hebrew.