Category Archives: Updates

זה הזמן לשינוי

Posted on March 1, 2015 by

זו הפעם החמש-עשרה שבה אצביע והפעם השלישית שאנו נמצאים לפני בחירות מאז שהתחלתי בכתיבת הבלוג. בעבר לא הבעתי בפומבי את הבחירה האישית שלי. עבורי יום הבחירות הוא יום חג, ההכרעות בין  תפיסות עולם ואינטרסים מנוגדים אינן קלות, ויש דרכים שונות, … Continue reading →

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Ilan and me

Posted on February 23, 2015 by

  With Ilan, my four month old grandson  

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From Oberwolfach: The Topological Tverberg Conjecture is False

Posted on February 6, 2015 by

The topological Tverberg conjecture (discussed in this post), a holy grail of topological combinatorics, was refuted! The three-page paper “Counterexamples to the topological Tverberg conjecture” by Florian Frick gives a brilliant proof that the conjecture is false. The proof is … Continue reading →

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Midrasha Mathematicae #18: In And Around Combinatorics

Posted on January 20, 2015 by

  Tahl Nowik                  Update 3 (January 30): The midrasha ended today. Update 2 (January 28): additional videos are linked; Update 1 (January 23): Today we end the first week of the school. David Streurer and Peter Keevash completed … Continue reading →

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Scott Triumphs* at the Shtetl

Posted on December 31, 2014 by

Scott Aaronson wrote a new post on the Shtetl Optimized** reflecting on the previous thread  (that I referred to in my post on Amy’s triumph), and on reactions to this thread. The highlight is a list of nine of Scott’s … Continue reading →

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@HUJI

Posted on December 26, 2014 by

Ilya Rips and me during Ilyafest last week (picture Itai Benjamini) Ilya Rips Birthday Conference Last week we had here a celebration for Ilya Rips’ birthday. Ilya is an extraordinary mathematician with immense influence on algebra and topology. There were … Continue reading →

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School Starts at HUJI

Posted on November 5, 2014 by

We are now starting the third week of the academic year at HUJI. As usual, things are very hectic, a lot of activities in the mathematics department, in our sister CS department, around in the campus, and in our combinatorics … Continue reading →

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In And Around Combinatorics: The 18th Midrasha Mathematicae. Jerusalem, JANUARY 18-31

Posted on September 29, 2014 by

  The 18th yearly school in mathematics is devoted this year to combinatorics. It will feature lecture series by Irit Dinur, Joel Hass, Peter Keevash, Alexandru Nica, Alexander Postnikov, Wojciech Samotij, and David Streurer and additional activities. As usual grants … Continue reading →

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Media Item from “Haaretz” Today: “For the first time ever…”

Posted on August 13, 2014 by

Maryam Mirzakhani received the medal from South Korea’s president Park Geun-hye.  Here is an article from today’s Israeli newspaper Haaretz.  It is based on this article by the Guardian (Thanks, Manor!).  See also this post on Laba’s accidental mathematician and John Baez’ … Continue reading →

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Jim Geelen, Bert Gerards, and Geoff Whittle Solved Rota’s Conjecture on Matroids

Posted on August 8, 2014 by

Gian Carlo Rota Rota’s conjecture I just saw in the Notices of the AMS a paper by Geelen, Gerards, and Whittle where they announce and give a high level description of their recent proof of Rota’s conjecture. The 1970 conjecture asserts … Continue reading →

Posted in Combinatorics, Open problems, Updates | Tagged , , , , , , | 6 Comments