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Dec
5
reviewed Close What would be nice open problem in evolutionary game theory ?
Dec
4
reviewed Close minimizing an integral over integer-coefficient polynomials $\displaystyle \inf_{f \in \mathbb{Z}[x]} \int_a^b f(x)^2 \, dx $
Dec
4
reviewed Close Upper and lower limits
Dec
3
reviewed No Action Needed (Eichler-Shimura Isomorphism) Proving c(f) is not a boundary
Dec
2
reviewed Leave Open Are there Zoll pancakes?
Dec
2
comment Is more alternating always better?
@User43408: If you are indeed Ken Perko, welcome to MO! Your suggested edit doesn't seem to fit completely with this question. You could ask that as a separate question if you see fit.
Dec
1
reviewed Close How can we join two points with a small ruler?
Nov
30
reviewed Leave Closed How can we join two points with a small ruler?
Nov
30
reviewed Leave Open How can we join two points with a small ruler?
Nov
28
reviewed Leave Open Teaching stochastic calculus to students who know no measure theory (or PDE, or…)
Nov
27
comment Do we know that 'most' finite groups are Galois groups of number fields?
@DerekHolt: I see my error. It was that $2^{k+1} < 3\times 2^k$ and the groups of order $2^{k+1}$ swamp the groups of order $3\times 2^k$.
Nov
27
comment Do we know that 'most' finite groups are Galois groups of number fields?
Since one can take a direct product of groups of order $2^k$ with say $C_3$, it doesn't seem correct to say that most groups are $2$-groups. However, I would guess that most groups are solvable: the orders of nonsolvable groups seems to be understood, see oeis.org/A056866 .
Nov
27
comment Isomorphism problem for two radical extensions
@FelipeVoloch: Thanks for the clarification, but surely those initially voting to close can vote to reopen if the question is edited and made correct. I'm also puzzled by how the answer came in after closure -- my guess would be that the answer was already in some draft form before the question was closed.
Nov
27
comment Isomorphism problem for two radical extensions
If the question is good enough to attract a response from User74230, it's good enough for this site. Voting to reopen.
Nov
27
reviewed Leave Closed Robotics, Cryptography, and Genetics applications of Grothendieck's work?
Nov
26
comment lower-bound for $Pr[X\geq EX]$
That looks very nice! Well done!
Nov
26
comment lower-bound for $Pr[X\geq EX]$
Right, in terms of $\alpha$ only. (I think in some ranges (either $\alpha\to 0$ or $\alpha \to 1$) one in fact gets a uniform bound even independent of $\alpha$.) Note: I don't have any real applications for this, just curiosity!
Nov
26
comment lower-bound for $Pr[X\geq EX]$
The problem is to get lower bounds independent of $n$. From Pokrovskiy's work (which is quite involved, but gives more) I think I can do this. But maybe you can see a simpler way!
Nov
25
comment lower-bound for $Pr[X\geq EX]$
Here's Feige's paper: wisdom.weizmann.ac.il/~feige/Others/newmarkov.pdf
Nov
25
awarded  Necromancer