Whitehead problem

en

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Whitehead problem

Quality:

Whitehead problem - the problem of whether an abelian group ? satisfying Ext¹(?,ℤ)=0 is necessarily free, now known to be independent of ZFC. Article “Whitehead problem” in English Wikipedia has 20.5 points for quality (as of July 1, 2025). The article contains 6 references and 6 sections.

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

In June 2025 the article “Whitehead problem” was edited by 1 authors in English Wikipedia and written by 1 authors in all languages.

Since the creation of article “Whitehead problem”, its content was written by 34 registered users of English Wikipedia and edited by 63 registered Wikipedia users in all languages.

The article is cited 18 times in English Wikipedia and cited 110 times in all languages.

The highest Authors Interest rank from 2001:

  • Local (English): #3778 in April 2003
  • Global: #7193 in April 2003

The highest popularity rank from 2008:

  • Local (English): #507071 in December 2009
  • Global: #773135 in December 2009

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
1English (en)
Whitehead problem
20.45
2Korean (ko)
화이트헤드 문제
19.766
3Hebrew (he)
בעיית וייטהד
2.2039
4Chinese (zh)
怀特海问题
1.0059
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 "Whitehead problem" in all the time
#LanguagePopularity awardRelative popularity
1English (en)
Whitehead problem
113 817
2Chinese (zh)
怀特海问题
13 642
3Hebrew (he)
בעיית וייטהד
6 605
4Korean (ko)
화이트헤드 문제
2 813
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 "Whitehead problem" in June 2025
#LanguagePopularity awardRelative popularity
1English (en)
Whitehead problem
888
2Chinese (zh)
怀特海问题
38
3Hebrew (he)
בעיית וייטהד
17
4Korean (ko)
화이트헤드 문제
9
More...

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

The highest AI

Language versions of the article "Whitehead problem" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.
#LanguageAI awardRelative AI
1English (en)
Whitehead problem
34
2Hebrew (he)
בעיית וייטהד
17
3Chinese (zh)
怀特海问题
10
4Korean (ko)
화이트헤드 문제
2
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 "Whitehead problem" with the highest AI in June 2025
#LanguageAI awardRelative AI
1English (en)
Whitehead problem
1
2Hebrew (he)
בעיית וייטהד
0
3Korean (ko)
화이트헤드 문제
0
4Chinese (zh)
怀特海问题
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 "Whitehead problem" with the highest Citation Index (CI)
#LanguageCI awardRelative CI
1Korean (ko)
화이트헤드 문제
86
2English (en)
Whitehead problem
18
3Chinese (zh)
怀特海问题
4
4Hebrew (he)
בעיית וייטהד
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
enEnglish
Whitehead problem
heHebrew
בעיית וייטהד
koKorean
화이트헤드 문제
zhChinese
怀特海问题

Popularity rank trends

Best Rank English:
#507071
12.2009
Global:
#773135
12.2009

AI rank trends

Best Rank English:
#3778
04.2003
Global:
#7193
04.2003

Local AI rank history

Global AI rank history

Languages comparison

Important global interconnections (July 2024 – June 2025)

Wikipedia readers most often find their way to information on Whitehead problem from Wikipedia articles about Gödels incompleteness theorems, Zermelo–Fraenkel set theory, Free module, Saharon Shelah and Undecidable problem. Whereas reading the article about Whitehead problem people most often go to Wikipedia articles on Ext functor, Saharon Shelah, Axiom of constructibility, Martins axiom and Cousin problems.

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

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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