Hilbert space

Quality:

Hilbert space - inner product space that is metrically complete; a Banach space whose norm induces an inner product (follows the parallelogram identity). Article “Hilbert space” in Simple English Wikipedia has 16.8 points for quality (as of July 1, 2026). The article contains 0 references and 2 sections. The article also contains templates indicating quality issues, therefore its score was reduced by 0.89 points.

This article has the best quality in English Wikipedia. Also, this article is the most popular in that (Simple English) language version.

Since the creation of article “Hilbert space”, its content was written by 18 registered users of Simple English Wikipedia and edited by 1624 registered Wikipedia users in all languages.

The article is cited 9 times in Simple English Wikipedia and cited 6101 times in all languages.

The highest Authors Interest rank from 2001:

• Local (Simple English): #1626 in October 2016
• Global: #31 in May 2003

The highest popularity rank from 2008:

• Local (Simple English): #2746 in June 2017
• Global: #18246 in October 2017

There are 45 language versions for this article in the WikiRank database (of the considered 55 Wikipedia language editions).

The quality and popularity assessment was based on Wikipédia dumps from July 1, 2026 (including revision history and pageviews for previous years).

The table below shows the language versions of the article with the highest quality.

#	Language	Quality grade	Quality score
1	English (en) Hilbert space		91.6631
2	Portuguese (pt) Espaço de Hilbert		88.624
3	Greek (el) Χώρος Χίλμπερτ		69.2267
4	Indonesian (id) Ruang Hilbert		60.07
5	Japanese (ja) ヒルベルト空間		57.6025
6	Dutch (nl) Hilbertruimte		50.5094
7	Chinese (zh) 希尔伯特空间		49.5001
8	Catalan (ca) Espai de Hilbert		33.8763
9	Vietnamese (vi) Không gian Hilbert		31.5208
10	Arabic (ar) فضاء هلبرت		28.4284

The following table shows the most popular language versions of the article.

#	Language	Popularity award	Relative popularity
1	English (en) Hilbert space		6 456 860
2	German (de) Hilbertraum		1 099 572
3	Russian (ru) Гильбертово пространство		943 120
4	French (fr) Espace de Hilbert		754 104
5	Spanish (es) Espacio de Hilbert		682 940
6	Japanese (ja) ヒルベルト空間		652 888
7	Italian (it) Spazio di Hilbert		587 380
8	Chinese (zh) 希尔伯特空间		457 459
9	Polish (pl) Przestrzeń Hilberta		355 679
10	Portuguese (pt) Espaço de Hilbert		139 025

The following table shows the language versions of the article with the highest popularity in the last month.

#	Language	Popularity award	Relative popularity
1	English (en) Hilbert space		20 346
2	German (de) Hilbertraum		3 095
3	Russian (ru) Гильбертово пространство		2 972
4	Japanese (ja) ヒルベルト空間		2 254
5	French (fr) Espace de Hilbert		2 184
6	Italian (it) Spazio di Hilbert		1 478
7	Spanish (es) Espacio de Hilbert		1 434
8	Polish (pl) Przestrzeń Hilberta		1 243
9	Chinese (zh) 希尔伯特空间		1 225
10	Portuguese (pt) Espaço de Hilbert		503

The following table shows the language versions of the article with the highest Authors’ Interest.

#	Language	AI award	Relative AI
1	English (en) Hilbert space		397
2	German (de) Hilbertraum		153
3	French (fr) Espace de Hilbert		105
4	Italian (it) Spazio di Hilbert		90
5	Russian (ru) Гильбертово пространство		77
6	Japanese (ja) ヒルベルト空間		69
7	Dutch (nl) Hilbertruimte		57
8	Chinese (zh) 希尔伯特空间		53
9	Hungarian (hu) Hilbert-tér		45
10	Spanish (es) Espacio de Hilbert		41

The following table shows the language versions of the article with the highest Authors’ Interest in the last month.

#	Language	AI award	Relative AI
1	English (en) Hilbert space		2
2	Arabic (ar) فضاء هلبرت		1
3	Azerbaijani (az) Hilbert fəzası		1
4	Catalan (ca) Espai de Hilbert		1
5	German (de) Hilbertraum		1
6	Greek (el) Χώρος Χίλμπερτ		1
7	Basque (eu) Hilberten espazio		1
8	Italian (it) Spazio di Hilbert		1
9	Swedish (sv) Hilbertrum		1
10	Chinese (zh) 希尔伯特空间		1

The following table shows the language versions of the article with the highest number of citations.

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The WikiRank project is intended for automatic relative evaluation of the articles in the various language versions of Wikipedia. At the moment the service allows to compare over 50 million Wikipedia articles in 55 languages. Quality scores of articles are based on Wikipedia dumps from July, 2026. When calculating current popularity and AI of articles data from June 2026 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2026... More information