Banach space

Japanese: バナッハ空間 - バナッハくうかん(英語表記)Banach space
Banach space
A set B is called a Banach space if it satisfies the following three conditions: (1) Set B is a vector space over the real or complex numbers. (2) For each element x of set B , its norm ∥x∥ is defined. (3) For two elements x and y of set B , if the distance between x and y is defined as ∥x - y∥ , then set B is a complete metric space with respect to this distance. Initially, Hilbert spaces were discussed as function spaces, and it was thought that the discussion could be applied to more general function spaces as well.

Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information

Japanese:
集合 B が次の3つの条件を満たすとき,これをバナッハ空間という。 (1) 集合 B は,実数または複素数体の上のベクトル空間である。 (2) 集合 B のおのおのの元 x に対して,そのノルム ∥x∥ が定義されている。 (3) 集合 B の2つの元 xy に対して,xy の間の距離を ∥xy∥ で定義すれば,この距離に関して集合 B は完備な距離空間である。初め,関数空間としてのヒルベルト空間が論じられ,その議論がもっと一般の関数空間にも通用するように考えられた。

出典 ブリタニカ国際大百科事典 小項目事典ブリタニカ国際大百科事典 小項目事典について 情報

<<:  Banat

>>:  Stefan Banach

Recommend

Airborne Mobile Force - Airborne Mobile Force

… In recent years, mechanization has progressed i...

Refund - Comp

[noun] (suru) To return something to its original ...

Kannon Pure Land

…The sacred mountain, or Mount Vulture, is the na...

Exchange company banknotes - Exchange company banknotes

...The ordinance was later renamed the Currency O...

Kettle

A type of water boiling device. As the character ...

Si Savang Vong (English spelling)

...In terms of education, a policy of ignoring th...

Eumenēs I (English spelling)

…In 282 BC, the Macedonian Philetairos became rul...

Qal'at Sem'an Monastery - Qal'at Sem'an Monastery

A late 5th century monastery near Aleppo in northe...

Quercus salicina - Quercus salicina

An evergreen tall tree of the Fagaceae family (AP...

Fisherman Bat

…General term for mammals belonging to the Noctil...

Lyric Pieces - Lyric Pieces

Muro Saisei's second collection of poems. Pub...

Redpath, N. (English spelling) RedpathN

...Therefore, the giants who appeared before and ...

Tricyrtis imeldae (English spelling)

…[Hiroshi Takahashi]. … *Some of the terminology ...

Cavaignac, E. (English notation) CavaignacE

…He was a politician who led the revolutionary re...

National Railway Niigata Struggle - National Railway Niigata Struggle

In the spring offensive of 1957, Kokuro (National ...