σ-compact
English
Etymology
The 'σ' stands for "countable union".
Adjective
σ-compact (not comparable)
- (mathematical analysis, of a set in a topological space) That is expressible as a countable union of compact sets.
Anagrams
This article is issued from
Wiktionary.
The text is licensed under Creative
Commons - Attribution - Sharealike.
Additional terms may apply for the media files.