X-Nico

unusual facts about measure theory



Banach measure

In mathematics, Banach measure in measure theory may mean a real-valued function on an algebra of all subsets of a set (for example, all subsets of the plane), by means of which a rigid, finitely additive area can be defined for every set, even when a set does not have a true geometric area.

Borel hierarchy

Properties of sets of small finite ranks are important in measure theory and analysis.

Monotone class theorem

In measure theory and probability, the monotone class theorem connects monotone classes and sigma-algebras.

Vitali convergence theorem

In real analysis and measure theory, the Vitali convergence theorem, named after the Italian mathematician Giuseppe Vitali, is a generalization of the better-known dominated convergence theorem of Henri Lebesgue.

Vitali covering lemma

In mathematics, the Vitali covering lemma is a combinatorial and geometric result commonly used in measure theory of Euclidean spaces.


see also