170,382 reputation
15114260
bio website
location
age
visits member for 3 years, 6 months
seen 7 mins ago

As somebody used to say:

Does research. Smokes. Battles administration. Smokes. Wishes he could stop battling administration so that he could have more time to do research. Smokes some more.

The same. Except I do not smoke.


How to ask a good question?

This paragraph is for my personal use but freely available:

Welcome to Math.SE! Please, consider updating your question to include what you have tried and where you are getting stuck. That way, people on this site will know exactly what help you need.


18m
revised Probability of Sum of Independent Events Exceeding a Value
added 32 characters in body
40m
revised Factoring $x^4+x^2+2x+6$
added 42 characters in body
1d
revised Asymptotics of $\sum_{n=1}^{\infty}x^{n+1/n}/n!>e^x$?
added 105 characters in body
1d
revised How to find derivative of an integral of this type
added 65 characters in body
1d
revised Are the product and ratio of two characteristic functions still characteristic functions?
edited title
1d
revised Are the product and ratio of two characteristic functions still characteristic functions?
rolled back to a previous revision
1d
revised Distributions of local times of a single excursion of 1D random walk
edited title
1d
revised Distributions of local times of a single excursion of 1D random walk
added 50 characters in body
1d
revised A series involving inverses of harmonic numbers
edited title
1d
revised Covariance of $X^2$ and $X^3$ when $X$ is exponentially distributed
edited title
1d
revised Are the product and ratio of two characteristic functions still characteristic functions?
deleted 27 characters in body
2d
revised Random walks with finite chance of escape
added 210 characters in body
2d
revised How to do integral $\int_0^T \frac{1}{t\sqrt{t(T-t)}}e^{-\frac{b^2}{2t}}dt$ and $\int_0^T \frac{1}{\sqrt{t(T-t)}}e^{-\frac{b^2}{2t}}dt$?
deleted 17 characters in body
2d
revised Mean absorption time for pure birth process
rolled back to a previous revision
2d
revised Help proving $Pr(\mathcal{X})= \phi_1(X,Z)\phi_2(Y,Z)$ if $ P \models (X \perp Y | Z)$ and $\mathcal{X}=X \cup Y \cup Z$
added 31 characters in body
Jul
27
revised Producing transient and recurrent examples for birth-death chains with mixed birth- and death-probabilities
edited title
Jul
27
revised Producing transient and recurrent examples for birth-death chains with mixed birth- and death-probabilities
added 66 characters in body
Jul
27
revised Upper bound of $\sum\limits_{j=1}^{n+1} \sum\limits_{i=0}^{j-1}{n+1 \choose j}{n \choose i}$
edited body
Jul
27
revised Upper bound of $\sum\limits_{j=1}^{n+1} \sum\limits_{i=0}^{j-1}{n+1 \choose j}{n \choose i}$
added 1 character in body; edited title
Jul
26
revised The set of points where two continuous functions agree is closed.
added 8 characters in body