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Category Archives: Combinatorics
Ricky and Branko
Two dear friends, and great geometers, Ricky Pollack and Branko Grünbaum passed away a few weeks ago. Ricky was a close friend that both Mazi my wife and I loved, and we were both fascinated by his wisdom, charm and … Continue reading
Posted in Combinatorics, Convexity, Geometry, Obituary
Tagged Branko Grunbaum, Ricky Pollack
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Video of my ICM2018 lecture: Noise Stability, Noise Sensitivity, and the Quantum Computer Puzzle
The Video of my ICM2018 lecture is now on the air Here are the (slightly improved) slides. I made the mistake of trying to improve my slides in the evening before the lecture and in the morning I discovered that … Continue reading
Posted in Combinatorics, Computer Science and Optimization, ICM2018, Quantum, Updates
Tagged ICM2018
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An Improved Bound for Weak Epsilon-Nets in the Plane, by Nathan Rubin, is on the arXive
The paper An Improved Bound for Weak Epsilon-Nets in the Plane, by Nathan Rubin is now on the arxive. we mentioned the result in this post, and the problem in this post (my very first) over Tao’s blog What’s New. … Continue reading
ICM2018 First Report
I just came back from Rio from a great congress. Many great talks and many exciting meetings with old and new friends. I had planned to live-blog on the last four days of the congress but on Monday evening I … Continue reading
Building Bridges II, and Rio ICM 2018
In this post I will talk about Building Bridges II – last week conference in Budapest, about my talk and Lex Schrijver’s talk at the conference, about two old videotaped lectures in Microsoft Research (and a prize carrying competition), and … Continue reading
Beyond the g-conjecture – algebraic combinatorics of cellular spaces I
The g-conjecture for spheres is surely the one single conjecture I worked on more than on any other, and also here on the blog we had a sequence of posts about it by Eran Nevo (I,II,III,IV). Here is a great … Continue reading
Posted in Combinatorics, Convex polytopes, Geometry
Tagged Anders Bjorner, Bob MacPherson, Carl Lee, Ed Swartz, Eran Nevo, g-conjecture, Günter Ziegler, Isabella Novik, June Huh, Kalle Karu, Karim Adiprasito, Kazhdan-Lustig polynomials, Lou Billera, Marge Bayer, Peter McMullen, Richard Stanley, Ron Adin, Satoshi Murai, Tom Braden
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An Interview with Yisrael (Robert) Aumann
I was privileged to join Menachem Yaari and Sergiu Hart in interviewing Yisrael Aumann. The interview is in Hebrew. It is an initiative of the Israel Academy of Sciences and the Humanities. For our non Hebrew speakers here is in … Continue reading
Posted in Academics, Combinatorics, Games, Geometry, Rationality
Tagged Menachem Yaari, Robert Aumann, Sergiu Hart
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Igor Pak is Giving the 2018 Erdős Lectures in Discrete Mathematics and Theoretical Computer Science
Update: The lectures this week are cancelled. They will be given at a later date. Next week Igor Pak will give the 2018 Erdős Lectures Monday Jun 18 2018 Combinatorics — Erdos lecture: Igor Pak (UCLA) “Counting linear extensions” 11:00am to 12:30pm Location: … Continue reading
Posted in Combinatorics, Computer Science and Optimization, Geometry, Updates
Tagged Igor Pak
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Vera T. Sòs, Doctor Philisophiae Honoris Causa, Hebrew University of Jerusalem
Videotaped by Ehud Friedgut.
Sailing into High Dimensions
On June 20 at 13:30 I talk here at HUJI about Sailing into high dimensions. (Thanks to Smadar Bergman for the poster.)
