bio  website  math.ubc.ca/~israel 

location  Vancouver BC  
age  64  
visits  member for  4 years, 4 months 
seen  9 hours ago  
stats  profile views  5,964 
Associate Professor Emeritus, University of British Columbia, and Optimization Algorithms Researcher, DWave Systems, Burnaby BC
2d

comment 
Minimal number of intersections in a convex $n$gon?
For $n=9$ I get $124$ for the parabola as opposed to $126$ for the regular nonagon. 
Jul 24 
answered  Existence of a countable linear combination with positive coefficients 
Jul 21 
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“Forthcoming paper” of GoldstonGrahamPintzYıldırım
You can search arXiv... arxiv.org/find/math/1/au:+Yildirim_C/0/1/0/all/0/1 
Jul 21 
awarded  Explainer 
Jul 21 
revised 
Lipschitzlike behaviour of quartic polynomials
Typo correction 
Jul 20 
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Distribution of bounded summation of i.i.d random variables
I prefer to write multiple integrals "physics style" with the $d$(variable)'s after the integral sign rather than at the end. It helps to make the connection between variables and endpoints clearer. 
Jul 19 
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Distribution of bounded summation of i.i.d random variables
$x$? What $x$? It's a function of $s$ and $T$ 
Jul 17 
answered  Determining when combinatorial sums are zero 
Jul 17 
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Determining when combinatorial sums are zero
Your numbers seem to be not $a_n$ as you defined it but $a_n/n!$. Of course that doesn't affect the signs. 
Jul 13 
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Measureminimizing simplex with fixed inradius
Also nonunique for a measure supported in the open ball of radius $r$, or for one supported outside the closed ball of radius the circumradius of the regular $n$simplex of inradius $r$. 
Jul 10 
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Distribution of bounded summation of i.i.d random variables
For one thing, there's no reason for $E[K]$ to be an integer. 
Jul 10 
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Distribution of bounded summation of i.i.d random variables
No, but in the limit as $T \to \infty$ you have the Elementary Renewal Theorem. 
Jul 9 
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Distribution of bounded summation of i.i.d random variables
1) memoization. 2) Thats why it's a sum over $n$ rather than an integral. 3) Because $S_n = S_{n1} + X_n$. 
Jul 9 
revised 
Distribution of bounded summation of i.i.d random variables
added 232 characters in body 
Jul 9 
answered  Distribution of bounded summation of i.i.d random variables 
Jul 8 
answered  SO(3) transformation that produces a reflection 
Jul 7 
revised 
Square Integrable Harmonic Functions in an Infinite Strip
added 157 characters in body 
Jul 7 
revised 
Square Integrable Harmonic Functions in an Infinite Strip
deleted 18 characters in body 
Jul 7 
answered  Square Integrable Harmonic Functions in an Infinite Strip 
Jul 7 
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Is $f(x,y)=\sum_{n\in\mathbb{Z}\backslash\{0\}}\frac{1}{n}e^{2\pi i(xn+yn^2)}$ essentially bounded?
Why not? The set of $(x,y)$ such that the series fails to converge is measurable and its intersection with every line $y = constant$ has measure $0$, therefore that set has $2$dimensional measure $0$. 