Mathematics
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fedja

Apparently, this user prefers to keep an air of mystery about them.

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35 What is the simplest lower bound on prime counting functions proof wise? Aug 13 '16
22 Math contest: Find number of roots of $F(x)=\frac{n}{2}$ involving a strange integral. Oct 24 '12
21 If $\int_{\mathbb R^2} \frac{\vert f(x)-f(y)\vert}{\vert x-y\vert^2}dxdy<+\infty$ then $f$ is a.e. constant Oct 30 '13
17 Optimizing response times of an ambulance corp: short-term versus average Nov 8 '12
16 Need a *trivial* proof of an “obvious” combinatorial result Dec 7 '17
15 Why can't $p^p-(p-1)^{p-1}=n^2$ be a square? Oct 31 '15
14 How to say $(a,b]$ and $[a,b)$ in English? Sep 6 '13
13 Level of Rigor in Mathematical Physics Aug 21 '13
12 Is it possible to characterize completeness of a normed vector space by convergence of Neumann series? Aug 14 '16
11 $w^4+(w')^2 = g(t)$ Feb 23 '13
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