Phrase guide

Banach space

noun · 1 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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1

noun

Meaning 1

A normed vector space which is complete with respect to the norm, meaning that Cauchy sequences have well-defined limits that are points in the space.

Definition source: English Wiktionary via Wiktextract

Usage: error-lua-exec

Qualifier: functional analysis

Examples

  • 1962 [Prentice-Hall], Kenneth Hoffman, Banach Spaces of Analytic Functions, 2007, Dover, page 138, Before taking up the extreme points for H1 and H ᪲, let us make a few elementary observations about the unit ball Σ in the Banach space X.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

Named after Polish mathematician Stefan Banach (1892–1945).

Across languages

Translations

15 source translations are retained for this English entry.

  • Afrikaans: Banach-ruimte — complete normed vector space
  • Bulgarian: банахово пространство (banahovo prostranstvo) — complete normed vector space
  • Chinese Mandarin: 巴拿赫空間 /巴拿赫空间 (Bānáhè kōngjiān) — complete normed vector space
  • Danish: Banachrum — complete normed vector space
  • French: espace de Banach — complete normed vector space
  • German: Banach-Raum — complete normed vector space
  • Hungarian: Banach-tér — complete normed vector space
  • Italian: spazio di Banach — complete normed vector space
  • Japanese: バナッハ空間 (Banahha-kūkan) — complete normed vector space
  • Polish: przestrzeń Banacha — complete normed vector space
  • Romanian: spațiu Banach — complete normed vector space
  • Russian: ба́нахово простра́нство (bánaxovo prostránstvo) — complete normed vector space
  • Serbo-Croatian: Банацхов про́стор — complete normed vector space
  • Serbo-Croatian: Banachov próstor — complete normed vector space
  • Swedish: Banachrum — complete normed vector space