Category Archives: People

Old lecture notes by Alex Zabrodsky

Posted on December 14, 2019 by

The next post will announce several mathematical events taking place in the next few weeks in Israel. One of these events is the Zabrodsky lectures at the Hebrew University of Jerusalem, that are given this year by Paul Seidel, starting … Continue reading →

Posted in Geometry, People | Tagged | 1 Comment

An interview with Noga Alon

Posted on August 1, 2019 by

Update: and here is a great interview of Noga in English and the interviewer is Narkis Alon, Noga’s youngest daughter and Amalya Duek. I was very happy to interview my academic doctoral  twin and long-time friend Noga Alon.  The interview … Continue reading →

Posted in Combinatorics, Computer Science and Optimization, People | Tagged | 7 Comments

The last paper of Catherine Rényi and Alfréd Rényi: Counting k-Trees

Posted on May 1, 2019 by

A k-tree is a graph obtained as follows: A clique with k vertices is a k-tree. A k-tree with n+1 vertices is obtained from a k-tree with n-vertices by adding a new vertex and connecting it to all vertices of a … Continue reading →

Posted in Combinatorics, People | Tagged , , | 7 Comments

The (Random) Matrix and more

Posted on April 21, 2019 by

Three pictures, and a few related links. Van Vu Spoiler: In one of the most intense scenes, the protagonist, with his bare hands and against all odds, took care of the mighty Wigner semi-circle law in two different ways. (From … Continue reading →

Posted in Combinatorics, People, What is Mathematics | Tagged , , , , , , | 1 Comment

My Copy of Branko Grünbaum’s Convex Polytopes

Posted on April 26, 2018 by

Branko Grünbaum is my academic grandfather (see this highly entertaining post for a picture representing five academic generations). Gunter Ziegler just wrote a beautiful article in the Notices of the AMS on Branko Grunbaum’s  classic book “Convex Polytopes”, so this … Continue reading →

Posted in Combinatorics, Convex polytopes, People | Tagged , , | 4 Comments

After-Dinner Speech for Alex Lubotzky

Posted on November 7, 2017 by

An after-dinner speech given on November  9, 2016*, on Alex Lubotzky’s 60th birthday conference: 60 faces to Groups.   As we all realized waking up this morning, today is a historic day*. It is the dinner day for Alex 60th‘s … Continue reading →

Posted in Conferences, People, personal | Tagged | Leave a comment