fedja
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 18 Math contest: Find number of roots of $F(x)=\frac{n}{2}$ involving a strange integral. 16 Optimizing response times of an ambulance corp: short-term versus average 15 Why can't $p^p-(p-1)^{p-1}=n^2$ be a square? 14 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 12 How to say $(a,b]$ and $[a,b)$ in English?

### Reputation (5,127)

 +145 Why can't $p^p-(p-1)^{p-1}=n^2$ be a square? +8 Proving that $e^{\pi}-{\pi}^e\lt 1$ without using a calculator +25 Real guessing puzzle +10 Method of dominant balance

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### Tags (110)

 43 contest-math × 5 24 optimization × 5 34 real-analysis × 12 23 prime-numbers × 3 32 calculus × 7 20 functional-analysis × 6 30 number-theory × 5 18 integration × 2 28 differential-equations × 5 18 power-series

### Accounts (5)

 MathOverflow 24,793 rep 478149 Mathematics 5,127 rep 515 Academia 3,234 rep 416 Russian Language 214 rep 13 Electrical Engineering 131 rep 2