Hadwiger–Nelson problem

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Hadwiger–Nelson problem

Quality:

Hadwiger–Nelson problem - mathematical problem. Article “Hadwiger–Nelson problem” in English Wikipedia has 31.1 points for quality (as of July 1, 2025). The article contains 11 references and 8 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 “Hadwiger–Nelson problem” was edited by 1 authors in English Wikipedia and written by 1 authors in all languages.

Since the creation of article “Hadwiger–Nelson problem”, its content was written by 53 registered users of English Wikipedia and edited by 181 registered Wikipedia users in all languages.

The article is cited 27 times in English Wikipedia and cited 118 times in all languages.

The highest Authors Interest rank from 2001:

  • Local (English): #7833 in April 2018
  • Global: #4149 in April 2018

The highest popularity rank from 2008:

  • Local (English): #47836 in May 2018
  • Global: #78370 in April 2018

There are 11 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)
Hadwiger–Nelson problem
31.1043
2German (de)
Hadwiger-Nelson-Problem
28.4399
3Chinese (zh)
哈德維格-納爾遜問題
27.769
4French (fr)
Problème de Hadwiger-Nelson
27.0284
5Catalan (ca)
Problema de Hadwiger–Nelson
26.948
6Hungarian (hu)
Hadwiger–Nelson-probléma
24.5449
7Polish (pl)
Problem Hadwigera-Nelsona
23.5282
8Portuguese (pt)
Problema de Hadwiger-Nelson
23.2718
9Russian (ru)
Задача Нелсона — Эрдёша — Хадвигера
22.8122
10Hebrew (he)
בעיית הדוויגר–נלסון
20.3533
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 "Hadwiger–Nelson problem" in all the time
#LanguagePopularity awardRelative popularity
1English (en)
Hadwiger–Nelson problem
278 335
2Russian (ru)
Задача Нелсона — Эрдёша — Хадвигера
54 799
3German (de)
Hadwiger-Nelson-Problem
14 382
4Chinese (zh)
哈德維格-納爾遜問題
11 032
5French (fr)
Problème de Hadwiger-Nelson
10 549
6Polish (pl)
Problem Hadwigera-Nelsona
5 018
7Portuguese (pt)
Problema de Hadwiger-Nelson
3 906
8Hebrew (he)
בעיית הדוויגר–נלסון
3 745
9Hungarian (hu)
Hadwiger–Nelson-probléma
1 355
10Ukrainian (uk)
Проблема Нельсона — Ердеша — Гадвігера
635
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 "Hadwiger–Nelson problem" in June 2025
#LanguagePopularity awardRelative popularity
1English (en)
Hadwiger–Nelson problem
2 320
2Russian (ru)
Задача Нелсона — Эрдёша — Хадвигера
265
3German (de)
Hadwiger-Nelson-Problem
224
4French (fr)
Problème de Hadwiger-Nelson
142
5Chinese (zh)
哈德維格-納爾遜問題
48
6Hebrew (he)
בעיית הדוויגר–נלסון
17
7Polish (pl)
Problem Hadwigera-Nelsona
16
8Ukrainian (uk)
Проблема Нельсона — Ердеша — Гадвігера
16
9Portuguese (pt)
Problema de Hadwiger-Nelson
14
10Catalan (ca)
Problema de Hadwiger–Nelson
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 "Hadwiger–Nelson problem" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.
#LanguageAI awardRelative AI
1English (en)
Hadwiger–Nelson problem
53
2German (de)
Hadwiger-Nelson-Problem
44
3Russian (ru)
Задача Нелсона — Эрдёша — Хадвигера
19
4French (fr)
Problème de Hadwiger-Nelson
15
5Ukrainian (uk)
Проблема Нельсона — Ердеша — Гадвігера
14
6Chinese (zh)
哈德維格-納爾遜問題
14
7Hebrew (he)
בעיית הדוויגר–נלסון
7
8Polish (pl)
Problem Hadwigera-Nelsona
6
9Portuguese (pt)
Problema de Hadwiger-Nelson
4
10Hungarian (hu)
Hadwiger–Nelson-probléma
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 "Hadwiger–Nelson problem" with the highest AI in June 2025
#LanguageAI awardRelative AI
1English (en)
Hadwiger–Nelson problem
1
2Catalan (ca)
Problema de Hadwiger–Nelson
0
3German (de)
Hadwiger-Nelson-Problem
0
4French (fr)
Problème de Hadwiger-Nelson
0
5Hebrew (he)
בעיית הדוויגר–נלסון
0
6Hungarian (hu)
Hadwiger–Nelson-probléma
0
7Polish (pl)
Problem Hadwigera-Nelsona
0
8Portuguese (pt)
Problema de Hadwiger-Nelson
0
9Russian (ru)
Задача Нелсона — Эрдёша — Хадвигера
0
10Ukrainian (uk)
Проблема Нельсона — Ердеша — Гадвігера
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 "Hadwiger–Nelson problem" with the highest Citation Index (CI)
#LanguageCI awardRelative CI
1Russian (ru)
Задача Нелсона — Эрдёша — Хадвигера
45
2English (en)
Hadwiger–Nelson problem
27
3German (de)
Hadwiger-Nelson-Problem
11
4French (fr)
Problème de Hadwiger-Nelson
9
5Ukrainian (uk)
Проблема Нельсона — Ердеша — Гадвігера
8
6Chinese (zh)
哈德維格-納爾遜問題
6
7Hungarian (hu)
Hadwiger–Nelson-probléma
5
8Hebrew (he)
בעיית הדוויגר–נלסון
3
9Catalan (ca)
Problema de Hadwiger–Nelson
2
10Polish (pl)
Problem Hadwigera-Nelsona
1
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
Problema de Hadwiger–Nelson
deGerman
Hadwiger-Nelson-Problem
enEnglish
Hadwiger–Nelson problem
frFrench
Problème de Hadwiger-Nelson
heHebrew
בעיית הדוויגר–נלסון
huHungarian
Hadwiger–Nelson-probléma
plPolish
Problem Hadwigera-Nelsona
ptPortuguese
Problema de Hadwiger-Nelson
ruRussian
Задача Нелсона — Эрдёша — Хадвигера
ukUkrainian
Проблема Нельсона — Ердеша — Гадвігера
zhChinese
哈德維格-納爾遜問題

Popularity rank trends

Best Rank English:
#47836
05.2018
Global:
#78370
04.2018

AI rank trends

Best Rank English:
#7833
04.2018
Global:
#4149
04.2018

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 Hadwiger–Nelson problem from Wikipedia articles about Aubrey de Grey, Four color theorem, List of unsolved problems in mathematics, Moser spindle and Chromatic number. Whereas reading the article about Hadwiger–Nelson problem people most often go to Wikipedia articles on Moser spindle, List of unsolved problems in mathematics, Aubrey de Grey, Borsuks conjecture and Four color theorem.

Cumulative results of quality and popularity of the Wikipedia article

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

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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