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2d
revised Why (and how) to choose $a$ in $\varrho(t):=a 1_{[0,1]}(t)\exp\left(\frac 1{t^2-1}\right)$ such that $\int_{\mathbb{R}^n}\varrho(|x|)\;dx=1$?
edited title
2d
revised How to prove that $\sum\limits_{n=1}^{\infty}\frac{n+4^n}{n+6^n}$ converge by basics test (comparison, integral, ratio, root)
edited title
May
1
revised Local martingale but not martingale
added 130 characters in body; edited tags
May
1
revised Probability distribution of $\int_0^t \frac{W_s}{s} \,ds$
added 14 characters in body
May
1
revised what is determinantal process?
deleted 38 characters in body
May
1
revised Evaluating $\lim\limits_{n\rightarrow \infty} \frac1{n^2}\ln \left( \frac{(n!)^n}{(0!1!2!…n!)^2} \right)$
added 114 characters in body; edited title
May
1
revised Discuss whether the series $\sum \left[(\pi/2)^a - (\arctan n)^a\right]$ converges or not, based on the value of $a$
deleted 8 characters in body; edited title
Apr
30
revised Proving conditional distributions are normal
added 12 characters in body
Apr
30
revised Proving conditional distributions are normal
added 53 characters in body
Apr
29
revised Need help with the sum of the binomial coefficients: ${k+l \choose l}$
added 28 characters in body
Apr
29
revised Joint pdf of N > 1 i.i.d. random variables isotropic if and only if they are centered gaussian?
added 37 characters in body; edited tags; edited tags
Apr
29
revised For which values of $\alpha$ is $\int_{1}^{\infty}f(x)\, \mathrm{d}x$ convergent?
added 172 characters in body
Apr
29
revised Is the variance of a sum of infinitely many independent random variables the sum of their variances?
added 1 character in body
Apr
29
revised prove $\lim\limits_{x\to\infty}\frac{1}{x}\int_0^xf(t)dt=a$
added 21 characters in body
Apr
26
revised Find the sum of a series
deleted 11 characters in body
Apr
26
revised How to show the series of expectations for truncated symmetric random variables is convergent
added 37 characters in body; edited title
Apr
26
revised Mean return time in Markov chain
deleted 27 characters in body
Apr
26
revised Find closed form formula
rolled back to a previous revision
Apr
26
revised Show the closed form of the sum $\sum_{i=0}^{n-1} i x^i$
rolled back to a previous revision
Apr
26
revised I need help to solve this complex question
rolled back to a previous revision