Bijective function

Quality:

Bijection - mathematical function which is a one-to-one mapping of sets. Article “Bijective function” in Simple English Wikipedia has 51.9 points for quality (as of July 1, 2026). The article contains 10 references and 9 sections.

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

Since the creation of article “Bijective function”, its content was written by 22 registered users of Simple English Wikipedia and edited by 1271 registered Wikipedia users in all languages.

The article is cited 29 times in Simple English Wikipedia and cited 6855 times in all languages.

The highest Authors Interest rank from 2001:

• Local (Simple English): #260 in April 2026
• Global: #54 in January 2001

The highest popularity rank from 2008:

• Local (Simple English): #3660 in November 2017
• Global: #13140 in October 2010

There are 48 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, 2026 (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) Bijection		52.2919
2	Simple English (simple) Bijective function		51.8622
3	Indonesian (id) Bijeksi		46.7672
4	Tamil (ta) இருவழிக்கோப்பு		33.1112
5	Turkish (tr) Birebir örten fonksiyon		30.3562
6	Arabic (ar) تقابل (دالة)		27.0671
7	Latin (la) Functio biiectiva		26.8403
8	Chinese (zh) 双射		25.832
9	Greek (el) Αμφιμονοσήμαντη συνάρτηση		24.5476
10	Lithuanian (lt) Bijekcija		23.452

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

#	Language	Popularity award	Relative popularity
1	English (en) Bijection		3 873 860
2	Spanish (es) Función biyectiva		3 012 635
3	German (de) Bijektive Funktion		1 537 199
4	French (fr) Bijection		1 018 103
5	Russian (ru) Биекция		772 487
6	Italian (it) Corrispondenza biunivoca		703 756
7	Polish (pl) Funkcja wzajemnie jednoznaczna		365 724
8	Japanese (ja) 全単射		342 414
9	Portuguese (pt) Função bijectiva		308 857
10	Chinese (zh) 双射		250 659

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

#	Language	Popularity award	Relative popularity
1	English (en) Bijection		6 803
2	German (de) Bijektive Funktion		1 531
3	French (fr) Bijection		1 531
4	Russian (ru) Биекция		1 365
5	Spanish (es) Función biyectiva		693
6	Japanese (ja) 全単射		520
7	Chinese (zh) 双射		476
8	Italian (it) Corrispondenza biunivoca		374
9	Polish (pl) Funkcja wzajemnie jednoznaczna		364
10	Portuguese (pt) Função bijectiva		280

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

#	Language	AI award	Relative AI
1	English (en) Bijection		229
2	German (de) Bijektive Funktion		122
3	French (fr) Bijection		92
4	Spanish (es) Función biyectiva		77
5	Italian (it) Corrispondenza biunivoca		69
6	Russian (ru) Биекция		61
7	Japanese (ja) 全単射		47
8	Hebrew (he) פונקציה חד-חד-ערכית ועל		46
9	Dutch (nl) Bijectie		46
10	Polish (pl) Funkcja wzajemnie jednoznaczna		37

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

#	Language	AI award	Relative AI
1	Arabic (ar) تقابل (دالة)		1
2	English (en) Bijection		1
3	Basque (eu) Bijekzio		1
4	Tamil (ta) இருவழிக்கோப்பு		1
5	Thai (th) ฟังก์ชันหนึ่งต่อหนึ่งทั่วถึง		1
6	Vietnamese (vi) Song ánh		1
7	Azerbaijani (az) Qarşılıqlı birqiymətli uyğunluq		0
8	Belarusian (be) Біекцыя		0
9	Bulgarian (bg) Биекция		0
10	Catalan (ca) Funció bijectiva		0

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

On 1 July 2026 in multilingual Wikipedia, Internet users most often read articles on the following topics: 2026 FIFA World Cup, Kylian Mbappé, Erling Haaland, Democratic Republic of the Congo, FIFA World Cup, Harry Kane, Romelu Lukaku, Senegal, Michael Olise, Sadio Mané.

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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 50 million Wikipedia articles in 55 languages. Quality scores of articles are based on Wikipedia dumps from July, 2026. When calculating current popularity and AI of articles data from June 2026 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2026... More information