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 Apr 28 awarded Popular Question Dec 12 awarded Notable Question Nov 18 awarded Popular Question Nov 15 awarded Notable Question Nov 3 awarded Popular Question Oct 29 comment If $X$ and $Y$ are lognormal and $E[\ln X - \ln Y]=k$, what can we say about $E[X-Y]$? @Did I would have accepted your answer if it was an answer. I wasn't reacting to the critics of your comment Oct 19 awarded Nice Answer Oct 15 asked If $X$ and $Y$ are lognormal and $E[\ln X - \ln Y]=k$, what can we say about $E[X-Y]$? Oct 8 awarded Popular Question Oct 5 awarded Yearling Sep 4 awarded Popular Question Jun 30 asked Is there a way to turn this summation into a matrix multiplication? Jun 9 revised What are some results that shook the foundations of one or more fields of mathematics? added 208 characters in body Jun 8 awarded Popular Question Jun 8 comment What are some results that shook the foundations of one or more fields of mathematics? I understand the question may have many possible answers, but I think it is sufficiently narrow that we can distinguish an answer from a non-answer in general, no? Jun 8 revised What are some results that shook the foundations of one or more fields of mathematics? added 688 characters in body Jun 8 comment True or False. $K_{2n}$ ( complete graph with 2n vertices) has Euler circuit. @BrianTung for n=1 it's K_2 Jun 8 comment True or False. $K_{2n}$ ( complete graph with 2n vertices) has Euler circuit. n=1 is an obvious counterexample Jun 8 awarded Nice Question Jun 8 revised What are some results that shook the foundations of one or more fields of mathematics? added 103 characters in body