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Jan
14
awarded  Nice Answer
Jan
14
answered Why does this sequence converges to $\pi$?
Jan
14
reviewed Leave Closed How many of Ramanujan's discoveries have had a practical application?
Jan
14
reviewed No Action Needed Reference for Mod 2 cohomology of $BZ_{2r}$ in terms of Stiefel-Whitney Classes
Jan
14
reviewed Close Divergence Theorem/Integration by Parts on Unbounded Domains
Jan
14
reviewed Leave Open What is an explicit example of a sequence converging to two different points?
Jan
13
reviewed Leave Open Inequality involving the side lengths of a quadrilateral
Jan
12
reviewed Leave Open This inequality why can't solve it by now (Only four variables inequality)?
Jan
12
reviewed Close Why Riemann Hypothesis so important
Jan
12
reviewed Approve Serre's FAC in English
Jan
10
comment Binomial coefficient identity
Look at $\int_0^1 (1-x)^m x^{n-1} dx$ and use the binomial theorem together with the beta integral.
Jan
8
reviewed Leave Open How large must $A$ be if $\{1, \ldots, N\} \subseteq A-A$?
Jan
5
reviewed Leave Closed How to refer to plural of mathematical symbols - with or without an apostrophe
Jan
4
reviewed Reject Where does a math person go to learn statistical mechanics?
Jan
2
comment Are there any serious investigations of whether “mathematicians do their best work when they're young”?
Perhaps this should be community-wiki? It seems opinion-based, and doesn't seem to me to admit a unique, definitive answer.
Jan
2
reviewed Approve Non-autonomous O.D.E with discontinuous and not integrable R.H.S
Jan
2
reviewed Leave Closed Are there any serious investigations of whether “mathematicians do their best work when they're young”?
Jan
1
reviewed Leave Open Does the hyperoctahedral group have only 3 maximal normal subgroups?
Dec
30
reviewed Close concept of efficiency in auction theory
Dec
30
reviewed Leave Closed How do we show this matrix has full rank?