Kurepa tree

en

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Kurepa tree

Quality:

Kurepa tree - in set theory, a tree of height ω₁, each of whose levels is countable, but with uncountably many branches. Article “Kurepa tree” in English Wikipedia has 5.8 points for quality (as of July 1, 2025). The article contains 0 references and 3 sections.

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

Since the creation of article “Kurepa tree”, its content was written by 18 registered users of English Wikipedia and edited by 28 registered Wikipedia users in all languages.

The article is cited 25 times in English Wikipedia and cited 53 times in all languages.

The highest Authors Interest rank from 2001:

  • Local (English): #201020 in October 2014
  • Global: #240208 in October 2011

The highest popularity rank from 2008:

  • Local (English): #996895 in February 2008
  • Global: #1220906 in April 2008

There are 3 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
1Polish (pl)
Hipoteza Kurepy
5.8588
2English (en)
Kurepa tree
5.802
3Japanese (ja)
クレパ木
1.5845
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 "Kurepa tree" in all the time
#LanguagePopularity awardRelative popularity
1English (en)
Kurepa tree
47 305
2Polish (pl)
Hipoteza Kurepy
12 858
3Japanese (ja)
クレパ木
4 669
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 "Kurepa tree" in June 2025
#LanguagePopularity awardRelative popularity
1English (en)
Kurepa tree
549
2Japanese (ja)
クレパ木
45
3Polish (pl)
Hipoteza Kurepy
18
More...

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

The highest AI

Language versions of the article "Kurepa tree" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.
#LanguageAI awardRelative AI
1English (en)
Kurepa tree
18
2Polish (pl)
Hipoteza Kurepy
7
3Japanese (ja)
クレパ木
3
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 "Kurepa tree" with the highest AI in June 2025
#LanguageAI awardRelative AI
1English (en)
Kurepa tree
0
2Japanese (ja)
クレパ木
0
3Polish (pl)
Hipoteza Kurepy
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 "Kurepa tree" with the highest Citation Index (CI)
#LanguageCI awardRelative CI
1English (en)
Kurepa tree
25
2Polish (pl)
Hipoteza Kurepy
24
3Japanese (ja)
クレパ木
4
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
Kurepa tree
jaJapanese
クレパ木
plPolish
Hipoteza Kurepy

Popularity rank trends

Best Rank English:
#996895
02.2008
Global:
#1220906
04.2008

AI rank trends

Best Rank English:
#201020
10.2014
Global:
#240208
10.2011

Languages comparison

Important global interconnections (July 2024 – June 2025)

Wikipedia readers most often find their way to information on Kurepa tree from Wikipedia articles about List of Serbian discoveries and inventions, Tree, Independence, Aronszajn tree and Đuro Kurepa. Whereas reading the article about Kurepa tree people most often go to Wikipedia articles on Diamond principle, Tree, Đuro Kurepa, Aronszajn tree and Jech–Kunen tree.

Cumulative results of quality and popularity of the Wikipedia article

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

News from 28 February 2026

On 28 February 2026 in multilingual Wikipedia, Internet users most often read articles on the following topics: Ali Khamenei, Iran, Ruhollah Khomeini, Jeffrey Epstein, Supreme Leader of Iran, Mohammad Reza I of Iran, 2026 Israeli–United States strikes on Iran, Neil Sedaka, Masoud Pezeshkian, Resident Evil Requiem.

In English Wikipedia the most popular articles on that day were: Ali Khamenei, 2026 Israeli–United States strikes on Iran, Neil Sedaka, Iran, Ruhollah Khomeini, Iran–Israel conflict, Supreme Leader of Iran, Scream 7, Elimination Chamber (2026), World War III.

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