# About

My name is Gil Kalai and I am a mathematician working mainly in the field of Combinatorics. Within combinatorics, I work mainly on geometric combinatorics and the study of convex polytopes and related objects, and on the analysis of Boolean functions and related matters. I am a professor at the Einstein Institute of Mathematics at the Hebrew University of Jerusalem and at the Efi Arazy School of Computer Science at IDC, Herzliya. I also have a long-term visiting position at the departments of Computer Science and Mathematics at Yale University, New Haven. My homepage contains more information about my research, teaching, former students and collaborators, and some pictures, none of which is as symmetric as this one:

** Gosset polytope**– a hand drawing by Peter McMullen of the plane projection of the 8-dimensional 4-simplicial 4-simple Gosset polytope.

More about me and the purpose of this blog can be found in the very first post.

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Gill,

what do you use to generate the latex for your posts?

…dick

allow me to mention as a literature major that rjlipton’s post can be read an entirely different way

Dear Dick, I use the very basic wordpress option I write the formula starting with the word latex between two dollar signs, and then pray. For example, if I put “latex NP \ne P” between two dollar signs (deleting the “s) I will get, hold your breath,

Voila!

Gil,

What do you use to generate your graphs? Do you use some other program and bring it in as a JPEG or something? Or can you do it more directly somehow? I am starting a combinatorics blog of my own and am wondering what the best way is.

Thanks for your help and for this blog!

Jay

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Our website Science.org is a informational databases and online news publication for anything and everything related to science and technology. We recently ran a poll asking our website users regarding what online informational resources they use to keep up to date or even to simply find great information. It seems many of our users have labeled your blog as an excellent source of Space information. We have reviewed your blog and must say, we absolutely love the information you have made available to the public and would love to make your blog a part of our top science blogs. After browsing your blog, our research team has decided to award you a Top science Blogs award banner.

Hi there,

I do hope this finds you well.

I was wondering if you might be able to help me. I am trying to find a German polymath who might be happy to be interviewed on the below programme about Goethe and other notable German polymaths of the past. Filming would be at the end of January/beginning of February.

Liberty Bell Productions are making a programme about German Culture for the BBC. Primary focus will be on 18th and 19th century arts and culture ranging from Bach to Bauhaus, Beethoven to the Brandenburg Gate, Wagner to Weimar Classicism.

I look forward to hearing from you – thanks so much.

Jess.

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I am really happy to find such an interesting blog, I found you trough friendfeed here:http://friendfeed.com/spaceweaver/04ab8654/first-evidence-that-quantum-processes, I thought your reflections where really interesting.

I am AI researcher mainly, but I am interested in math mainly, for example I tweet things such as:Discuss:”Can you link Gödel’s incompleteness theorems with turing’s Halting problem? do they refer to metaSelfReference blindspot/paradox?”, and in my blog I talk about things such as, http://singyourownlullaby.blogspot.com/2009/02/what-is-mathematics.html (what is mathematics) among other things.

Hope we could stay in touch and exchange information eventually.

Cheers

Thanks for the blog and posts.

The”Gosset polytope” in this post is amazing!

That can be drawn by hand!?!

Looks like I should make my mathematics study rapid so that I can also draw such amazing 8-D figures.

Dear Sir! I’m an under graduate student of math and physics from India. First time I read or heard or learnt about the word

combinatoricsat your site today. It is almost a strange topic for me. But as I usually do, I planned to read about you and then to wander across posts of your site. Seems an ocean of knowledge. Let see how much knowledge I can carry…?Hello Gil,

Something unrelated to any specific post. I just noticed that in your blogroll, ‘Tamya Khovanova Math Blog’ is misspelled. It is Tanya instead of Tamya.

GK: Many thanks, correctedPingback: Przypadkowa matematykla – wpis wtóry | FIKSACJE

Hello Gil,

I am currently running a crowd funding campaign for my upcoming educational game Sweet Math. I was wondering what is the process to get a story out on your blog.

Here’s more information about the game itself: http://www.kickstarter.com/projects/89952638/sweet-math

Regards,

—-

For those of you who think education is a key to make the world a better place check out our educational game Sweet Math. We are currently at 69% of our funding goal and the campaign will end on November 14th. We accept donation for as low as $1. http://www.kickstarter.com/projects/89952638/sweet-math

The game let player practice arithmetics with their entire family.

Shalom,

As a possibly unrelated question just out of curiosity:

Who is the guy sitting beside you in the picture above your blog? He seems to be a mathematician. Right? Sorry for my ignorance if he is a well-known person and my question is off-topic.

Hi Ali, This is a picture with Jiri Matousek (See this post).

My condolence. I’m sorry to hear that Prof. Matousek is dead. It is always hard to lose a thinking brain, particularly when it happens too soon.

I really admire your commemoration of the dead colleagues and acquaintances on your blog. Unfortunately this doesn’t happen so frequently nowadays.

Taking advantage of this particular day (2nd of October), I wish you a great +1

Dear Patrice, thanks a lot!

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Hi Gil,

I’m the Community Manager with Anagram Interactive, where we specialize in connecting established brands with prominent bloggers. We are currently running a campaign for one of the top online stationery brands that you and your readers might find very interesting.

Please let me know if this is something you’d be interested in and I’ll show you how to get started. Please kindly write to me at helen@anagraminteractive.com

I was linked here by a reddit post on a related topic. thank you for your masterful exposition.