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user142929

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

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Top posts (36) All Questions Answers | Votes Newest

4 What work can be done to study the solutions of $\varphi\left(x^{\sigma(x)}\sigma(x)^x\right)=2^{x-1} x^{3x-1}\varphi(x)$? Jul 19
4 On the integral $\int_0^1\log(x!)dx$ revisited Aug 2
3 Products taken over semiprimes Aug 3
3 The function $\sum_{n=0}^\infty\frac{(-1)^n\mu(2n+1)}{(2n+1)^s}$: reference request or particular values at integers and abscissa of convergence Jul 29
2 Does exist a variant of Frullani's theorem valid for $f(x)=\pi(x)/x$ or $f(x)=\psi(x)/x$, where the numerators are prime-counting functions? Aug 4
2 What about a formula similar than Mill's formula, but producing positive integers without repeated prime factors? Jul 25
2 Solutions of $y^2=\binom{x}{0}+2\binom{x}{1}+4\binom{x}{2}+8\binom{x}{3}$ for positive integers $x$ and $y$ Jul 26
2 An attempt to get a variant of Agoh–Giuga conjecture Aug 5
2 Generalization of a problem, involving radicals and the floor function, proposed by Ramanujan to the Journal of the Indian Mathematical Society Aug 6
1 A simple inequality that arises from the exact form for the prime-counting function and the second Hardy–Littlewood conjecture Aug 7
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