User Christophe Leuridan - MathOverflow Meta

Christophe Leuridan

Member for 2 years, 10 months
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17

Can nonnegative functions $f(x,y,z)$ be written as a product of pairwise functions $u(x,y) v(y,z) w(x, z)$?

11

If Series $\sum \sqrt\frac{a_n}{n}$ converges then $\sum a_n$ converges?

9

Sophomore's Eternal Dream $\int_0^1\cdots\int_0^1 (t_1t_2\cdots t_n)^{t_1t_2\cdots t_n} dt_1 dt_2\cdots dt_n$

8

Inequality on Brownian motions and Ito integrals

8

If $n=2m$, what is the order of the permutation $\sigma(k)=2k , \quad \sigma(m+k)=2k-1$