Real projective plane

Real projective plane - a compact non-orientable two-dimensional manifold. Article “Real projective plane” in English Wikipedia has 51 points for quality (as of July 1, 2025). The article contains 5 references and 18 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.

Since the creation of article “Real projective plane”, its content was written by 80 registered users of English Wikipedia and edited by 167 registered Wikipedia users in all languages.

The article is cited 121 times in English Wikipedia and cited 517 times in all languages.

The highest Authors Interest rank from 2001:

• Local (English): #18063 in March 2004
• Global: #47553 in March 2004

The highest popularity rank from 2008:

• Local (English): #126894 in October 2012
• Global: #205538 in October 2012

There are 14 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) Real projective plane		51.0096
2	Finnish (fi) Reaalinen projektiivinen taso		44.8618
3	Russian (ru) Вещественная проективная плоскость		42.2987
4	Spanish (es) Plano proyectivo real		38.632
5	Ukrainian (uk) Дійсна проєктивна площина		37.9149
6	Esperanto (eo) Reela projekcia ebeno		28.4769
7	Chinese (zh) 实射影平面		27.606
8	Greek (el) Πραγματικό προβολικό επίπεδο		18.0984
9	Slovenian (sl) Realna projektivna ravnina		13.2344
10	French (fr) Plan projectif réel		12.47

More...

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

The most popular language versions of the article "Real projective plane" in all the time

#	Language	Popularity award	Relative popularity
1	English (en) Real projective plane		979 139
2	Chinese (zh) 实射影平面		35 185
3	French (fr) Plan projectif réel		34 460
4	Spanish (es) Plano proyectivo real		34 153
5	Russian (ru) Вещественная проективная плоскость		29 330
6	Polish (pl) Płaszczyzna rzutowa rzeczywista		23 701
7	Dutch (nl) Reëel projectief vlak		10 475
8	Esperanto (eo) Reela projekcia ebeno		4 153
9	Czech (cs) Reálná projektivní rovina		3 445
10	Slovenian (sl) Realna projektivna ravnina		2 711

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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 "Real projective plane" in June 2025

#	Language	Popularity award	Relative popularity
1	English (en) Real projective plane		3 766
2	Spanish (es) Plano proyectivo real		366
3	Russian (ru) Вещественная проективная плоскость		364
4	French (fr) Plan projectif réel		208
5	Chinese (zh) 实射影平面		157
6	Japanese (ja) 実射影平面		87
7	Polish (pl) Płaszczyzna rzutowa rzeczywista		87
8	Dutch (nl) Reëel projectief vlak		51
9	Greek (el) Πραγματικό προβολικό επίπεδο		16
10	Finnish (fi) Reaalinen projektiivinen taso		13

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

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

#	Language	AI award	Relative AI
1	English (en) Real projective plane		80
2	French (fr) Plan projectif réel		18
3	Chinese (zh) 实射影平面		13
4	Polish (pl) Płaszczyzna rzutowa rzeczywista		12
5	Dutch (nl) Reëel projectief vlak		9
6	Esperanto (eo) Reela projekcia ebeno		6
7	Finnish (fi) Reaalinen projektiivinen taso		6
8	Russian (ru) Вещественная проективная плоскость		6
9	Ukrainian (uk) Дійсна проєктивна площина		4
10	Czech (cs) Reálná projektivní rovina		3

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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 "Real projective plane" with the highest AI in June 2025

#	Language	AI award	Relative AI
1	Esperanto (eo) Reela projekcia ebeno		1
2	Finnish (fi) Reaalinen projektiivinen taso		1
3	Czech (cs) Reálná projektivní rovina		0
4	Greek (el) Πραγματικό προβολικό επίπεδο		0
5	English (en) Real projective plane		0
6	Spanish (es) Plano proyectivo real		0
7	French (fr) Plan projectif réel		0
8	Japanese (ja) 実射影平面		0
9	Dutch (nl) Reëel projectief vlak		0
10	Polish (pl) Płaszczyzna rzutowa rzeczywista		0

More...

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

Language versions of the article "Real projective plane" with the highest Citation Index (CI)

#	Language	CI award	Relative CI
1	Greek (el) Πραγματικό προβολικό επίπεδο		122
2	English (en) Real projective plane		121
3	Russian (ru) Вещественная проективная плоскость		47
4	Chinese (zh) 实射影平面		46
5	Spanish (es) Plano proyectivo real		44
6	French (fr) Plan projectif réel		30
7	Esperanto (eo) Reela projekcia ebeno		23
8	Slovenian (sl) Realna projektivna ravnina		22
9	Ukrainian (uk) Дійсна проєктивна площина		18
10	Japanese (ja) 実射影平面		15

More...

#	Language	Value
cs	Czech Reálná projektivní rovina
el	Greek Πραγματικό προβολικό επίπεδο
en	English Real projective plane
eo	Esperanto Reela projekcia ebeno
es	Spanish Plano proyectivo real
fi	Finnish Reaalinen projektiivinen taso
fr	French Plan projectif réel
ja	Japanese 実射影平面
nl	Dutch Reëel projectief vlak
pl	Polish Płaszczyzna rzutowa rzeczywista
ru	Russian Вещественная проективная плоскость
sl	Slovenian Realna projektivna ravnina
uk	Ukrainian Дійсна проєктивна площина
zh	Chinese 实射影平面

Best Rank

English: #126894 10.2012

Global: #205538 10.2012

Best Rank

English: #18063 03.2004

Global: #47553 03.2004

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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