Operador autoadjunto

Self-adjoint operator - densely defined operator on a Hilbert space whose domain coincides with that of its adjoint and which equals its adjoint; symmetric operator whose adjoint's domain equals its own domain. Article “Operador autoadjunto” in Portuguese Wikipedia has 14.5 points for quality (as of July 1, 2026). The article contains 4 references and 3 sections.

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

Since the creation of article “Operador autoadjunto”, its content was written by 18 registered users of Portuguese Wikipedia and edited by 346 registered Wikipedia users in all languages.

The article is cited 46 times in Portuguese Wikipedia and cited 1212 times in all languages.

The highest Authors Interest rank from 2001:

• Local (Portuguese): #6644 in December 2020
• Global: #27918 in February 2003

The highest popularity rank from 2008:

• Local (Portuguese): #69114 in December 2021
• Global: #98337 in November 2014

There are 13 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) Self-adjoint operator		52.0787
2	German (de) Selbstadjungierter Operator		33.1918
3	Italian (it) Operatore autoaggiunto		32.4626
4	Czech (cs) Samoadjungovaný operátor		29.2259
5	Greek (el) Αυτοσυζυγής τελεστής		24.4967
6	Portuguese (pt) Operador autoadjunto		14.525
7	French (fr) Endomorphisme autoadjoint		13.7726
8	Korean (ko) 자기 수반 작용소		13.3962
9	Polish (pl) Operator samosprzężony		7.5127
10	Chinese (zh) 自伴算子		7.512

More...

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

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

#	Language	Popularity award	Relative popularity
1	English (en) Self-adjoint operator		1 904 899
2	German (de) Selbstadjungierter Operator		259 441
3	Italian (it) Operatore autoaggiunto		244 755
4	French (fr) Endomorphisme autoadjoint		219 009
5	Japanese (ja) エルミート作用素		212 059
6	Chinese (zh) 自伴算子		163 270
7	Portuguese (pt) Operador autoadjunto		69 253
8	Polish (pl) Operator samosprzężony		26 924
9	Korean (ko) 자기 수반 작용소		13 606
10	Greek (el) Αυτοσυζυγής τελεστής		10 930

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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 "Operador autoadjunto" in June 2026

#	Language	Popularity award	Relative popularity
1	English (en) Self-adjoint operator		4 074
2	German (de) Selbstadjungierter Operator		599
3	Chinese (zh) 自伴算子		501
4	French (fr) Endomorphisme autoadjoint		485
5	Japanese (ja) エルミート作用素		437
6	Italian (it) Operatore autoaggiunto		414
7	Polish (pl) Operator samosprzężony		356
8	Portuguese (pt) Operador autoadjunto		118
9	Persian (fa) عملگر خودالحاقی		55
10	Czech (cs) Samoadjungovaný operátor		33

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

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

#	Language	AI award	Relative AI
1	English (en) Self-adjoint operator		147
2	German (de) Selbstadjungierter Operator		38
3	Italian (it) Operatore autoaggiunto		38
4	French (fr) Endomorphisme autoadjoint		28
5	Japanese (ja) エルミート作用素		26
6	Portuguese (pt) Operador autoadjunto		18
7	Chinese (zh) 自伴算子		17
8	Greek (el) Αυτοσυζυγής τελεστής		9
9	Korean (ko) 자기 수반 작용소		8
10	Czech (cs) Samoadjungovaný operátor		7

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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 "Operador autoadjunto" with the highest AI in June 2026

#	Language	AI award	Relative AI
1	Arabic (ar) مؤثر مساعد ذاتي		1
2	Czech (cs) Samoadjungovaný operátor		0
3	German (de) Selbstadjungierter Operator		0
4	Greek (el) Αυτοσυζυγής τελεστής		0
5	English (en) Self-adjoint operator		0
6	Persian (fa) عملگر خودالحاقی		0
7	French (fr) Endomorphisme autoadjoint		0
8	Italian (it) Operatore autoaggiunto		0
9	Japanese (ja) エルミート作用素		0
10	Korean (ko) 자기 수반 작용소		0

More...

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

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

#	Language	CI award	Relative CI
1	English (en) Self-adjoint operator		391
2	Japanese (ja) エルミート作用素		156
3	Chinese (zh) 自伴算子		154
4	German (de) Selbstadjungierter Operator		117
5	French (fr) Endomorphisme autoadjoint		98
6	Italian (it) Operatore autoaggiunto		94
7	Korean (ko) 자기 수반 작용소		72
8	Portuguese (pt) Operador autoadjunto		46
9	Polish (pl) Operator samosprzężony		45
10	Persian (fa) عملگر خودالحاقی		15

More...

#	Language	Value
ar	Arabic مؤثر مساعد ذاتي
cs	Czech Samoadjungovaný operátor
de	German Selbstadjungierter Operator
el	Greek Αυτοσυζυγής τελεστής
en	English Self-adjoint operator
fa	Persian عملگر خودالحاقی
fr	French Endomorphisme autoadjoint
it	Italian Operatore autoaggiunto
ja	Japanese エルミート作用素
ko	Korean 자기 수반 작용소
pl	Polish Operator samosprzężony
pt	Portuguese Operador autoadjunto
zh	Chinese 自伴算子

Best Rank

Portuguese: #69114 12.2021

Global: #98337 11.2014

Best Rank

Portuguese: #6644 12.2020

Global: #27918 02.2003

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.

In Portuguese Wikipedia the most popular articles on that day were: Erling Haaland, República Democrática do Congo, Romelu Lukaku, Copa do Mundo FIFA de 2026, Kylian Mbappé, Senegal, Copa do Mundo FIFA, Lista de artilheiros da Copa do Mundo FIFA, Harry Kane, Carlo Ancelotti.

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