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Mar
30
comment Brunett Derrida behaviour for the branching brownian motion with selection
Why not ask the authors?
Mar
15
awarded  Yearling
Feb
8
revised How many times does a simple symmetric random walk of length n return to the origin?
added 2 characters in body; edited tags
Jan
21
revised a unique solution ? iteration involving conditional distributions
deleted 22 characters in body
Jan
21
revised a unique solution ? iteration involving conditional distributions
deleted 13 characters in body
Jan
20
awarded  Revival
Dec
6
comment Reference for branching processes
mypage.iu.edu/~rdlyons/prbtree/prbtree.html
Nov
28
comment Why did Grothendieck say stop publishing his works?
"Novels or art" should not be "properties of the mankind"?
Sep
29
comment $\langle X\rangle_t = t$
Why was this heavily upvoted? Seems to me to be rather offtopic for the site...
Sep
25
awarded  Citizen Patrol
Sep
25
comment Integral of the product of Normal density and cdf
@Randel How can you think this is a great answer if you feel there is a gap at the first step, I wonder... Anyway, thanks for the appreciation, and note that $$\int_\mathbb R\Phi(B^{-1}(x-A))\varphi(x)\mathrm dx=E(\Phi(B^{-1}(Y-A)))$$ and that, for every $x$, $$\Phi(x)=P(X\leqslant x),$$ hence, using the independence of $X$ and $Y$, one gets the formula in the post.
Sep
16
awarded  Nice Answer
Jun
28
revised Typical value of totient function
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Jun
22
revised Constructing Bernoulli random variables with prescribed correlation
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Jun
18
comment for which values of $\theta$ does this equation $x_{n+1}=\cos(\theta)x^2_{n}-\sin(\theta)x^2_{n-1}$ have bounded solutions?
Every ball centered at $0$ with radius at most $1/(|A|+|B|)$ is stable by the dynamics. For every $\theta$, $1/(|A(\theta)|+|B(\theta)|)\leqslant1/\sqrt2$. For every starting point such that $x_{-1}^2+x_0^2\lt1/2$, $x_n\to0$ at least geometrically fast.
May
1
revised Brownian local time density
deleted 12 characters in body
Mar
15
awarded  Yearling
Sep
26
revised Correlated Brownian motion and Poisson process
deleted 9 characters in body
Sep
24
awarded  Autobiographer
Sep
23
revised Top specialized journals
added 2 characters in body