Uniform integrability (source code)

= Uniform integrability
{wiki}

= Uniformly integrable
{synonym}

A family of <integrable> <random variables> is uniformly <integrable> when
$$
\lim_{K\to\infty}\sup_{X}\mathbb E\bigl[|X|\mathbf1_{\{|X|>K\}}\bigr]=0.
$$
Almost-sure or probabilistic convergence together with <Uniform integrability> upgrades to $L^1$ convergence.