What has been will be again, what has been done will be done again, and there is nothing new under the sun. A while ago I wrote a piece of spoken word, relating (in a contorted way) the multitude of cheeses found in the modern fromagerie to the multitude of gods found in the not-so-modern … More Nothing new under the sun
This is part three in a three-part series about recurrence and transience on the integer lattices. Here is part one. Here is part two. Weary and tired, we are approaching the end of our coin-flipping, lattice-exploring adventures, but with one aching question still burning deep within our hearts: Is the random walk on the three-dimensional … More There and back again, part 3
This is part two in a three-part series about recurrence and transience on the integer lattices. Here is part one. Here is part three. In the previous post, we saw that the integer lattice is recurrent. This means that a simple random walk, when starting at the origin , will return to the origin with … More There and back again, part 2
This is part one in a three-part series about recurrence and transience on the integer lattices. Here is part two. Here is part three. It is a truth universally acknowledged, that a single man in possession of a coin, who repeatedly flips it, taking one step forwards if it comes up heads, and one step … More There and back again, part 1
I know, I know, you’ve probably had enough of these only-contain-a-tiny-bit-of-images posts. “Where are our cherished, good-old-time, incoherent mathematical ramblings which we have come to know and love?” you must be wondering. I promise, there’ll be more of those soon(ish). But until then, here’s another one, together with an announcement: I got married!
During the recent spring holidays I treated myself a fun day in Tel Aviv. Here are some photos I took, using my Incredible Super High-Res Powerhouse Vorpal Camera of the Zodiac (aka a 6 megapixel smartphone camera).
Some photos I took during my recent “adventures”, using my Incredible Super High-Res Powerhouse Vorpal Camera of the Zodiac (aka a 6 megapixel smartphone camera).
This is a queasy post. It should make you feel good, because you will hear fantastic music, but it should also make you feel bad, because you’ll see sexist comments. You can’t avoid the comments, really. They’re in deep. For this is a current fact of life: when a woman gives a technical, professional, or … More They still do it
In spirit of “Animals with Misleading Names” and the discussion about nonstandard adjectives in mathematics, I present: mathematical objects with misleading names: (Non-original images are either in public domain, or can be found here and here.
Dedicated to Harold Cohen, who died last year, and to his son AARON. I Grunting softly, the father slipped out of bed. The mother stirred the faintest amount, her shoulders sliding a sliver of a hair, noticing the sudden emptiness besides her. But her breathing kept its pace, and she remained in gentle slumber. No … More Three scenes from childhood
Look, look! It’s a book! I wonder what’s inside. I sure am glad that the Weizmann mathematics library is “in the know” and keeps only the most updated and useful books around. In case you haven’t heard much about prime numbers, you can read about them in the book’s introduction: The introduction is actually rather … More A Prime Book
A while ago I wrote a post about indistinguishable sceneries on the Boolean hypercube. The post contained this (pretty, if I may so myself) image: This is a three dimensional embedding of the four dimensional Boolean hypercube; by “embedding”, I mean putting the vertices and edges of the 4d cube in some way in space, … More Finding knots in graph embeddings
I’m happy to say that my advisor Ronen Eldan and I recently uploaded a paper to the arXiv under the title “Decomposition of mean-fields Gibbs distributions into product measures” (https://arxiv.org/abs/1708.05859). This is a sister paper of the previous one about exponential random graphs: this one presents a “general framework” and only briefly touches on how … More New paper on arXiv: Decomposition of mean-field Gibbs distributions into product measures
I just got back from Budapest, where I participated in a summer school on graph limits, groups, and stochastic processes. The school was enriching and contained good lectures from good speakers. I might even get to write about the mathematical content one day, if I ever actually understand what really went on there. But today … More People of Budapest
At the end of the semester, in order to see their grades, students at the Weizmann Institute must complete an online survey about each course they participated in. The survey asks questions about both the course and the teachers, and the results are then shown in a “previously, on ‘Topics in Holomorphy’ ”-styled section in … More Few courses are better
Observation: in English, there are several countries whose name and language are similar. Unfortunately, there is no clear way to construct the appropriate suffix from the stem. For example: In Hungary they speak Hungarian. In Germany they speak German. In Turkey they speak Turkish. In China they speak Chinese. In Corsica they (spoke) speak Corsican. … More In X they speak f(X)