Empress Elisabeth of Austria did maths .

She is famous for this integral :

$$\int_{0}^{\pi}Si(x)Si(x)dx$$

Wich is an unsolved problem .(lol)

Well I like maths at a amateur level and also Monty Python .My god in music is JS Bach played by Glenn Gould.I dislike philosophy .Now...I sleep.

Hard nut :

let $a,b,c>0$ and $p\geq 1$ then we have :

$$\left(\frac{a^3}{13a^2+5b^2}\right)^p+\left(\frac{b^3}{13b^2+5c^2}\right)^p+\left(\frac{c^3}{13c^2+5a^2}\right)^p\geq 3\left(\frac{a+b+c}{54}\right)^p$$