Perusryhmä

Fundamental group - mathematical group of the homotopy classes of loops in a topological space. Article “Perusryhmä” in Finnish Wikipedia has 39.6 points for quality (as of July 1, 2025). The article contains 13 references and 10 sections.

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

In June 2025 the article “Perusryhmä” was edited by 1 authors in Finnish Wikipedia and written by 2 authors in all languages.

Since the creation of article “Perusryhmä”, its content was written by 3 registered users of Finnish Wikipedia and edited by 554 registered Wikipedia users in all languages.

The article is cited 8 times in Finnish Wikipedia and cited 2031 times in all languages.

The highest Authors Interest rank from 2001:

• Local (Finnish): #5145 in May 2025
• Global: #1104 in August 2001

The highest popularity rank from 2008:

• Local (Finnish): #104179 in May 2025
• Global: #178712 in March 2010

There are 29 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.

#	Language	Quality grade	Quality score
1	English (en) Fundamental group		72.4185
2	Greek (el) Θεμελιώδης ομάδα		63.3615
3	Indonesian (id) Grup dasar		48.9451
4	French (fr) Groupe fondamental		46.1528
5	Chinese (zh) 基本群		39.8804
6	Finnish (fi) Perusryhmä		39.6077
7	Catalan (ca) Grup fonamental		38.5068
8	Basque (eu) Oinarrizko talde		37.3235
9	Turkish (tr) Temel grup		37.086
10	Italian (it) Gruppo fondamentale		36.1173

More...

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

The most popular language versions of the article "Perusryhmä" in all the time

#	Language	Popularity award	Relative popularity
1	English (en) Fundamental group		810 964
2	French (fr) Groupe fondamental		100 429
3	German (de) Fundamentalgruppe		97 000
4	Japanese (ja) 基本群		93 321
5	Italian (it) Gruppo fondamentale		90 981
6	Spanish (es) Grupo fundamental		89 799
7	Russian (ru) Фундаментальная группа		73 443
8	Chinese (zh) 基本群		35 791
9	Polish (pl) Grupa podstawowa		35 066
10	Portuguese (pt) Grupo fundamental		30 886

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

The most popular language versions of the article "Perusryhmä" in June 2025

#	Language	Popularity award	Relative popularity
1	English (en) Fundamental group		4 368
2	Japanese (ja) 基本群		656
3	French (fr) Groupe fondamental		494
4	German (de) Fundamentalgruppe		427
5	Russian (ru) Фундаментальная группа		410
6	Italian (it) Gruppo fondamentale		377
7	Spanish (es) Grupo fundamental		335
8	Chinese (zh) 基本群		202
9	Hebrew (he) חבורה יסודית		84
10	Portuguese (pt) Grupo fundamental		71

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

Language versions of the article "Perusryhmä" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.

#	Language	AI award	Relative AI
1	English (en) Fundamental group		145
2	German (de) Fundamentalgruppe		49
3	French (fr) Groupe fondamental		49
4	Italian (it) Gruppo fondamentale		43
5	Russian (ru) Фундаментальная группа		30
6	Turkish (tr) Temel grup		24
7	Spanish (es) Grupo fundamental		23
8	Vietnamese (vi) Nhóm cơ bản		23
9	Hebrew (he) חבורה יסודית		21
10	Hungarian (hu) Fundamentális csoport		18

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

Language versions of the article "Perusryhmä" with the highest AI in June 2025

#	Language	AI award	Relative AI
1	English (en) Fundamental group		1
2	Finnish (fi) Perusryhmä		1
3	Arabic (ar) زمرة أساسية		0
4	Catalan (ca) Grup fonamental		0
5	Czech (cs) Fundamentální grupa		0
6	German (de) Fundamentalgruppe		0
7	Greek (el) Θεμελιώδης ομάδα		0
8	Spanish (es) Grupo fundamental		0
9	Basque (eu) Oinarrizko talde		0
10	Persian (fa) گروه بنیادی		0

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

Language versions of the article "Perusryhmä" with the highest Citation Index (CI)

#	Language	CI award	Relative CI
1	English (en) Fundamental group		449
2	Italian (it) Gruppo fondamentale		178
3	German (de) Fundamentalgruppe		167
4	French (fr) Groupe fondamental		142
5	Russian (ru) Фундаментальная группа		127
6	Polish (pl) Grupa podstawowa		115
7	Japanese (ja) 基本群		108
8	Ukrainian (uk) Фундаментальна група		99
9	Korean (ko) 기본군		95
10	Chinese (zh) 基本群		89

More...

#	Language	Value
ar	Arabic زمرة أساسية
ca	Catalan Grup fonamental
cs	Czech Fundamentální grupa
de	German Fundamentalgruppe
el	Greek Θεμελιώδης ομάδα
en	English Fundamental group
es	Spanish Grupo fundamental
eu	Basque Oinarrizko talde
fa	Persian گروه بنیادی
fi	Finnish Perusryhmä
fr	French Groupe fondamental
gl	Galician Grupo fundamental
he	Hebrew חבורה יסודית
hu	Hungarian Fundamentális csoport
id	Indonesian Grup dasar
it	Italian Gruppo fondamentale
ja	Japanese 基本群
ko	Korean 기본군
nl	Dutch Fundamentaalgroep
pl	Polish Grupa podstawowa
pt	Portuguese Grupo fundamental
ru	Russian Фундаментальная группа
simple	Simple English Fundamental group
sr	Serbian Fundamentalna grupa
sv	Swedish Fundamentalgrupp
tr	Turkish Temel grup
uk	Ukrainian Фундаментальна група
vi	Vietnamese Nhóm cơ bản
zh	Chinese 基本群

Best Rank

Finnish: #104179 05.2025

Global: #178712 03.2010

Best Rank

Finnish: #5145 05.2025

Global: #1104 08.2001

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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