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Mar
2
awarded  Nice Answer
Mar
1
comment Regularized sums of Mobius sequence
@JoeSilverman: I added a clarification above.
Mar
1
revised Regularized sums of Mobius sequence
edited tags
Mar
1
revised Regularized sums of Mobius sequence
added 315 characters in body
Mar
1
reviewed Leave Open What is the growth of the rank of a power of a finite simple group?
Mar
1
answered Regularized sums of Mobius sequence
Feb
28
reviewed Close Combinatorical meaning of such expression
Feb
28
reviewed Leave Closed Survey of Engineering Problems for Mathematicians
Feb
28
answered Why would the roots of the generating functions of the number of k-almost primes less than x have negative real parts?
Feb
27
reviewed No Action Needed What is an extragradient method?
Feb
26
comment Averages of $L(s,\chi)$
In what sense is convergence intended? That is how do $m$ and $n$ go to infinity?
Feb
26
awarded  Nice Answer
Feb
25
revised Bound on a scaled sum of the Liouville function
added 356 characters in body
Feb
25
answered Bound on a scaled sum of the Liouville function
Feb
25
comment Most dense subset of numbers that avoids arbitrarily long arithmetic progressions
If you're interested in lower bounds for the largest set without a $k$-AP, then Behrend's construction is still essentially the best known, and it gives a set of size $n\exp(-c\sqrt{\log n})$ for some constant $c>0$. See this recent paper of Green and Wolf: arxiv.org/pdf/0810.0732v1.pdf
Feb
23
reviewed Approve $ n $-Cats-in-a-Bed Problem: Picking $ n $ points in a given planar domain to maximize the sum of their pairwise distances
Feb
22
reviewed Leave Closed Zorn's lemma via Zermelo theorem
Feb
22
reviewed Leave Closed the most natural approach to solve an elliptic PDE in R^n
Feb
22
reviewed Leave Closed Survey of Engineering Problems for Mathematicians
Feb
21
reviewed Close Kwantitatieve Methoden