Inequality

Inequality for square summable complex series ★★

Author(s): Retkes

Conjecture   For all the following inequality holds

Keywords: Inequality

Inequality of the means ★★★

Author(s):

Question   Is is possible to pack rectangular -dimensional boxes each of which has side lengths inside an -dimensional cube with side length ?

Keywords: arithmetic mean; geometric mean; Inequality; packing

Sums of independent random variables with unbounded variance ★★

Author(s): Feige

Conjecture   If are independent random variables with , then