Fierz identity

en

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Fierz identity

Quality:

Fierz identity - identity that allows one to rewrite bilinears of the product of two spinors as a linear combination of products of the bilinears of the individual spinors. Article “Fierz identity” in English Wikipedia has 3.4 points for quality (as of July 1, 2025).

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

Since the creation of article “Fierz identity”, its content was written by 25 registered users of English Wikipedia and edited by 32 registered Wikipedia users in all languages.

The article is cited 9 times in English Wikipedia and cited 19 times in all languages.

The highest Authors Interest rank from 2001:

  • Local (English): #111549 in June 2019
  • Global: #313805 in March 2006

The highest popularity rank from 2008:

  • Local (English): #885364 in November 2021
  • Global: #1351149 in October 2023

There are 4 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
1Russian (ru)
Тождества Фирца
19.6598
2English (en)
Fierz identity
3.394
3Korean (ko)
피어츠 항등식
3.3198
4Catalan (ca)
Identitat de Fierz
3.3156
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 "Fierz identity" in all the time
#LanguagePopularity awardRelative popularity
1English (en)
Fierz identity
102 022
2Russian (ru)
Тождества Фирца
9 844
3Korean (ko)
피어츠 항등식
4 812
4Catalan (ca)
Identitat de Fierz
15
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 "Fierz identity" in June 2025
#LanguagePopularity awardRelative popularity
1English (en)
Fierz identity
721
2Russian (ru)
Тождества Фирца
78
3Korean (ko)
피어츠 항등식
9
4Catalan (ca)
Identitat de Fierz
3
More...

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

The highest AI

Language versions of the article "Fierz identity" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.
#LanguageAI awardRelative AI
1English (en)
Fierz identity
25
2Korean (ko)
피어츠 항등식
3
3Russian (ru)
Тождества Фирца
3
4Catalan (ca)
Identitat de Fierz
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 "Fierz identity" with the highest AI in June 2025
#LanguageAI awardRelative AI
1Catalan (ca)
Identitat de Fierz
0
2English (en)
Fierz identity
0
3Korean (ko)
피어츠 항등식
0
4Russian (ru)
Тождества Фирца
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 "Fierz identity" with the highest Citation Index (CI)
#LanguageCI awardRelative CI
1English (en)
Fierz identity
9
2Korean (ko)
피어츠 항등식
5
3Russian (ru)
Тождества Фирца
5
4Catalan (ca)
Identitat de Fierz
0
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
caCatalan
Identitat de Fierz
enEnglish
Fierz identity
koKorean
피어츠 항등식
ruRussian
Тождества Фирца

Popularity rank trends

Best Rank English:
#885364
11.2021
Global:
#1351149
10.2023

AI rank trends

Best Rank English:
#111549
06.2019
Global:
#313805
03.2006

Languages comparison

Important global interconnections (July 2024 – June 2025)

Wikipedia readers most often find their way to information on Fierz identity from Wikipedia articles about Gamma matrices, Pauli matrices, Spinor, Gell-Mann matrices and Dirac algebra. Whereas reading the article about Fierz identity people most often go to Wikipedia articles on Markus Fierz, Gell-Mann matrices, Gamma matrices, Clifford algebra and Weyl equation.

Cumulative results of quality and popularity of the Wikipedia article

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

News from 16 March 2026

On 16 March 2026 in multilingual Wikipedia, Internet users most often read articles on the following topics: 98th Academy Awards, Michael B. Jordan, Sinners, Jessie Buckley, Paul Thomas Anderson, Sean Penn, One Battle After Another, Amy Madigan, Hamnet, Timothée Chalamet.

In English Wikipedia the most popular articles on that day were: 98th Academy Awards, Michael B. Jordan, Paul Thomas Anderson, Jessie Buckley, Sinners (2025 film), Amy Madigan, Autumn Durald Arkapaw, Maya Rudolph, Sean Penn, Academy Awards.

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