σ-algebra (English, noun)
expansion: σ-algebra (plural σ-algebras)
Senses:
topics: mathematical-analysis
mathematics
sciences
glosses: A collection of subsets of a given set, such that the empty set is part of this collection, the collection is closed under complements (with respect to the given set) and the collection is closed under countable unions.
Forms:
form: σ-algebras
tags: plural
form: sigma-algebra
tags: alternative
form: Σ-algebra
tags: alternative