9,596 reputation
13119199
bio website gilkalai.wordpress.com
location Jerusalem
age 59
visits member for 5 years, 6 months
seen 6 hours ago
Professor of Mathematics at the Hebrew University of Jerusalem and at Yale University

Nov
28
comment k-pseudorandom measures
Maybe this post from "in theory" lucatrevisan.wordpress.com/2008/06/05/… is relevant
Nov
28
comment How to think about CM rings?
Any links for Serre's S_n properties? Does CM mean to have property S_i for every i?
Nov
28
revised How to think about CM rings?
spelling
Nov
28
revised The Sylvester Gallai Theorem and Sections of Varieties with “Simple Topology”.
unite two tags
Nov
28
comment When shorter means smaller?
Do sets of constant width have this property?
Nov
28
answered Fundamental Examples
Nov
28
answered Fundamental Examples
Nov
28
comment Is there a matrix whose permanent counts 3-colorings?
Harrison, the fact that 3-coloring is #P does not mean that there is a description of the number of 3-coloring of a graph as a permanent.
Nov
27
comment Is there a theorem that says that there is always more than one way to “continue a finite sequence”?
I like the question and it led to 8 nice answers
Nov
27
comment Fundamental Examples
This great answer have earned Charles the first gold badge in mathoverflow history. Congratulations, Charles!
Nov
27
revised Fundamental Examples
chane "is" to "was"
Nov
27
comment Generalizations of the Birkhoff-von Neumann Theorem
Actually the motivation for the question is a recent extension of the Birkhoff-von Neumann theorem by Ellis, Friedgut and Pilpel that I heard yeasterday. I thought it can be useful to try to collect various such generalizations fron various directions and it is also true that Greg and I discussed over the years no less than three different directions where this theorem is extended on of which is the "non-generalization" Greg's mention. (Greg, is there any reference or link?) (In any case, what is "cheating" about it?)
Nov
26
revised Generalizations of the Birkhoff-von Neumann Theorem
added 1 characters in body; edited tags
Nov
26
asked Generalizations of the Birkhoff-von Neumann Theorem
Nov
26
answered Do good math jokes exist?
Nov
26
answered Fundamental Examples
Nov
26
comment Fundamental Examples
Of course, for this question and many others there is no meaning to "correct answer". In fact I liked all the answers to the question and I hope more answers will come along. Jose was the most valuable partner to this endeavor and he contributed several great answers both before and after the boundy was announced.
Nov
26
accepted Fundamental Examples
Nov
26
awarded  Nice Answer
Nov
25
answered How to think about CM rings?