Partial isometry

en

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Partial isometry

Quality:

Partial isometry - linear map between Hilbert spaces. Article "Partial isometry" in English Wikipedia has 22.9 points for quality (as of July 1, 2025). The article contains 0 references and 14 sections.

This article has the best quality in Chinese Wikipedia. However, this article is the most popular in English version.

In June 2025 the article "Partial isometry" was edited by 1 authors in English Wikipedia and written by 1 authors in all languages.

Since the creation of article "Partial isometry", its content was written by 21 registered users of English Wikipedia and edited by 52 registered Wikipedia users in all languages.

The article is cited 24 times in English Wikipedia and cited 42 times in all languages.

The highest Authors Interest rank from 2001:

  • Local (English): #86084 in March 2005
  • Global: #163576 in March 2005

The highest popularity rank from 2008:

  • Local (English): #981371 in November 2009
  • Global: #492288 in December 2008

There are 6 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, 2025 (including revision history and pageviews for previous years).

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

Languages with the highest quality

#LanguageQuality gradeQuality score
1Chinese (zh)
部分等距映射
23.3454
2English (en)
Partial isometry
22.9087
3German (de)
Partielle Isometrie
7.0465
4French (fr)
Isométrie partielle
2.9561
5Polish (pl)
Częściowa izometria
2.6624
6Japanese (ja)
部分等長作用素
2.0855
More...

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

Most popular in all the time

The most popular language versions of the article "Partial isometry" in all the time
#LanguagePopularity awardRelative popularity
1English (en)
Partial isometry
72 399
2German (de)
Partielle Isometrie
12 804
3French (fr)
Isométrie partielle
8 813
4Polish (pl)
Częściowa izometria
6 422
5Japanese (ja)
部分等長作用素
3 983
6Chinese (zh)
部分等距映射
378
More...

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

Most popular in June 2025

The most popular language versions of the article "Partial isometry" in June 2025
#LanguagePopularity awardRelative popularity
1English (en)
Partial isometry
463
2French (fr)
Isométrie partielle
57
3Japanese (ja)
部分等長作用素
31
4Chinese (zh)
部分等距映射
15
5German (de)
Partielle Isometrie
14
6Polish (pl)
Częściowa izometria
10
More...

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

The highest AI

Language versions of the article "Partial isometry" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.
#LanguageAI awardRelative AI
1English (en)
Partial isometry
21
2French (fr)
Isométrie partielle
13
3German (de)
Partielle Isometrie
8
4Polish (pl)
Częściowa izometria
6
5Japanese (ja)
部分等長作用素
3
6Chinese (zh)
部分等距映射
1
More...

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

The highest AI in June 2025

Language versions of the article "Partial isometry" with the highest AI in June 2025
#LanguageAI awardRelative AI
1English (en)
Partial isometry
1
2German (de)
Partielle Isometrie
0
3French (fr)
Isométrie partielle
0
4Japanese (ja)
部分等長作用素
0
5Polish (pl)
Częściowa izometria
0
6Chinese (zh)
部分等距映射
0
More...

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

The highest CI

Language versions of the article "Partial isometry" with the highest Citation Index (CI)
#LanguageCI awardRelative CI
1English (en)
Partial isometry
24
2French (fr)
Isométrie partielle
5
3German (de)
Partielle Isometrie
4
4Japanese (ja)
部分等長作用素
4
5Polish (pl)
Częściowa izometria
3
6Chinese (zh)
部分等距映射
2
More...

Scores

Estimated value for Wikipedia:
English:
Global:
Popularity in June 2025:
English:
Global:
Popularity in all years:
English:
Global:
Authors in June 2025:
English:
Global:
Registered authors in all years:
English:
Global:
Citations:
English:
Global:

Quality measures

Interwikis

#LanguageValue
deGerman
Partielle Isometrie
enEnglish
Partial isometry
frFrench
Isométrie partielle
jaJapanese
部分等長作用素
plPolish
Częściowa izometria
zhChinese
部分等距映射

Popularity rank trends

Best Rank English:
#981371
11.2009
Global:
#492288
12.2008

AI rank trends

Best Rank English:
#86084
03.2005
Global:
#163576
03.2005

Languages comparison

Important global interconnections (July 2024 – June 2025)

Wikipedia readers most often find their way to information on Partial isometry from Wikipedia articles about Polar decomposition, Projection, Isometry, Density matrix and Von Neumann algebra. Whereas reading the article about Partial isometry people most often go to Wikipedia articles on Isometry, Polar decomposition, Orthogonal complement, Kernel and Projection.

Cumulative results of quality and popularity of the Wikipedia article

List of Wikipedia articles in different languages (starting with the most popular):

News from 12 August 2025

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In English Wikipedia the most popular articles on that day were: Weapons (2025 film), Danielle Spencer (American actress), Cristiano Ronaldo, Deaths in 2025, Taylor Swift, Wednesday (TV series), Superman (2025 film), Georgina Rodríguez, Coolie (2025 film), The Fantastic Four: First Steps.

About WikiRank

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 44 million Wikipedia articles in 55 languages. Quality scores of articles are based on Wikipedia dumps from July, 2025. When calculating current popularity and AI of articles data from June 2025 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2025... More information