6,827 reputation
632
bio website twitter.com/SimeonLePoisson
location
age
visits member for 1 year, 8 months
seen 9 mins ago

35s
reviewed Close An exponential martingale
1m
reviewed Approve suggested edit on model-theory tag wiki excerpt
21m
comment Isomorphism between $E$ and $Lin(E)$ : infinite dimensional case.
Don't you mean $|B|=\dim E$?
30m
revised Expecation of uniform distriution with unknown parameter, given maximal (minimal) observation.
added 3 characters in body
38m
answered Expecation of uniform distriution with unknown parameter, given maximal (minimal) observation.
1h
answered Proof that a random variable has exponential distribution.
1h
comment Evaluation of $\sum n a^n$ using telescoping property
@Giiovanna: express it only with terms of the form $ka^k$ or $a^k$. For instance $na^{n+1} = (n+1)a^{n+1} - a^{n+1}$.
2h
comment Evaluation of $\sum n a^n$ using telescoping property
Hint: Multiply the series by $(a-1)^2$ and operate the telescoping simplifications.
3h
reviewed Close Quadratic form in canonical form relation
3h
reviewed Leave Open Is mixing preserved under a measure theoretic-isomorphism of dynamical systems?
3h
reviewed Close How to solve the quadratic equation by completing the square?
3h
comment I need to model a population where every component have a fixed life span.
What is the question?
4h
comment Fourier Transform Properties Proof
The abuse of notation makes your question unclear but I think I get it. Hint: how does Fourier transform behaves with respect to convolution?
4h
comment How to give rigorous proofs of these two limit statements?
What is a converging sequence of sets ? I do not remember I ever encountered this notion.
1d
answered Convergence of a r.v. in probability to a constant in probability
Jul
15
awarded  Enlightened
Jul
15
awarded  Nice Answer
Jul
13
comment What is an algorithm for making text form a circle
@MPW: good remark (+1)!
Jul
13
answered What is an algorithm for making text form a circle
Jul
11
answered Series Convergence/Divergence $\frac{n^n}{(n+1)^{n+1}}$