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bio website gilkalai.wordpress.com
location Jerusalem
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Professor of Mathematics at the Hebrew University of Jerusalem and at Yale University

Nov
17
answered Fundamental Examples
Nov
17
answered Fundamental Examples
Nov
16
revised Examples for Decomposition Theorem
edited tags
Nov
16
comment Examples for Decomposition Theorem
I am not sure where the computation of homology of toric varieties using the decomposition theorem is described. The outcome of the computation (with related things) is described in various places like Stanley, Richard P. Subdivisions and local $h$-vectors. J. Amer. Math. Soc. 5 (1992), no. 4, 805--851 and Braden, Tom Remarks on the combinatorial intersection cohomology of fans. Pure Appl. Math. Q. 2 (2006), no. 4, part 2, 1149--1186.
Nov
16
answered Examples for Decomposition Theorem
Nov
16
answered Fundamental Examples
Nov
15
answered Fundamental Examples
Nov
15
comment How Does Random Noise Typically Look?
Greg, how would you formalize the sentence "If you randomly choose a stochastic map on the probability space of bit strings,"
Nov
15
revised How Does Random Noise Typically Look?
added 434 characters in body
Nov
15
awarded  Popular Question
Nov
14
awarded  Organizer
Nov
14
revised How to do Computations Using the Decomposition Theorem for Perverse Sheaves
edited tags
Nov
14
answered Fundamental Examples
Nov
14
answered Fundamental Examples
Nov
13
comment Dimension Leaps
That's a very nice question.
Nov
13
comment Asymptotics of a hypergeometric series/Taylor series coefficient.
Ryan, in the paper on Fourier proof for Arrow's thm there is a computation on the sum of squares of kth lavel f.c. which is maybe what you were looking for.
Nov
13
revised f(f(x))=exp(x)-1 and other functions “just in the middle” between linear and exponential
edited tags; edited tags
Nov
13
comment f(f(x))=exp(x)-1 and other functions “just in the middle” between linear and exponential
I suppose we do not know if an entire function (or something close to entire) with such an intermediate growth function is possible, and also are such functions related to any mathematics. (Maybe they are related to formal groups.)
Nov
13
comment Fundamental Examples
The wiki entry is en.wikipedia.org/wiki/Tsirelson_space . See also a discussion on Gowers's blog gowers.wordpress.com/2009/02/17/…
Nov
13
answered Fundamental Examples