Sep
19
comment Prove that $2^x+1$ is always greater or less than $3^\frac{x}{2}$?
please do not make edits which make the answer appears off topic.
Sep
8
comment How do I solve this specific set of integrals?
please work on your formatting.
Sep
6
comment Computing the Length of a finite length module.
Hi Sadegh. Please show us what you tried so far by editting the question. As it stands, this question fails to meet the quality of questions expected on this site.
Sep
5
comment A problem about strong law of large numbers of Shiryaev's Probability
How do you conclude from infinite mean that the series $P(|Y_i|>iR)$ diverges?
Sep
3
comment Min-max optimizacion
please write this in a more readable format.
Aug
30
comment Is $\exp(-2\sin^2t)$ a characteristic function?
@snarski i assume the former. but if you know the latter, even better?/
Aug
15
comment Has anyone ever won a field medal for inventing stochastic calculus?
Your answer now needs an update because of Martin Hairer. :)
Aug
8
comment Angle between $(X,Y)$ and $(E(X), E(Y)) $ where X and Y are independent random variables.
@Alex how do you define angle with, say 3, variables?
Aug
4
comment If $a_1a_2\cdots a_n=1$, then the sum $\sum_k a_k\prod_{j\le k} (1+a_j)^{-1}$ is bounded below by $1-2^{-n}$
Please consider accepting an answer by pressing the tick when you are happy. I realized you have not yet accepted any answer.
Jul
24
comment Upper bounding a Poisson Process with indicators of exponentials
$\mathcal{E}\sim\exp(\lambda)$? <- doesn't meant $N$ no longer takes integer values.?
Jul
24
comment Ergodic properties of orthogonal group $O(n)$
Please consider accepting some answers for the 104 questions you asked.
Jul
24
comment Evaluating $\int^b_a \frac{dx}{x}$ from the definition of the integral
What I do not understand is, what is a Harmonic number when $bn/(b-a)$?
Jul
24
comment Why left multiplication when it comes to Markov chains?
Because $P_{12}$ is prob from state 1 to 2, not vice versa
Jul
23
comment Expected number of changes of serves in a game of raquetball
@ian i was lazy but should have spotted the 0.1428 to be honest...
Jul
23
comment Expected number of changes of serves in a game of raquetball
@orio1909 because the Markov Chain is aperiodic and recurrent, so it will always converge to its stationary distribution.
Jul
22
comment What did I do wrong when using Jacobian transformation
Can you please write out how you did the transformation? This is bog standard.
Jul
22
comment Trace of power of stochastic matrix
@pisoir so what are you trying to show?
Jul
22
comment Trace of power of stochastic matrix
you are essentially asking how does the overall probability that a state remains where it is in 1 move compare with a state remains where it is in 2 moves...
Jul
22
comment Trace of power of stochastic matrix
nevertheless, it is still false, change the $0$ to a small $\epsilon$.
Jul
22
comment Asymptotics of sum of binomial distributions
+1, thanks again.