Operatore lineare chiuso

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Operatore lineare chiuso

Quality:

Closed operator - linear operator whose graph is closed. Article “Operatore lineare chiuso” in Italian Wikipedia has 9.2 points for quality (as of July 1, 2025). The article contains 1 references and 6 sections.

This article has the best quality in Kazakh Wikipedia. However, the most popular language version of this article is English.

Since the creation of article “Operatore lineare chiuso”, its content was written by 20 registered users of Italian Wikipedia and edited by 110 registered Wikipedia users in all languages.

The article is cited 16 times in Italian Wikipedia and cited 268 times in all languages.

The highest Authors Interest rank from 2001:

  • Local (Italian): #35480 in June 2007
  • Global: #121196 in November 2009

The highest popularity rank from 2008:

  • Local (Italian): #206544 in April 2008
  • Global: #1165005 in January 2025

There are 9 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
1Kazakh (kk)
Тұйық оператор
21.3113
2English (en)
Closed linear operator
12.6456
3Italian (it)
Operatore lineare chiuso
9.2367
4German (de)
Abgeschlossener Operator
8.2441
5Russian (ru)
Замкнутый оператор
7.0917
6Dutch (nl)
Gesloten operator
4.7269
7Portuguese (pt)
Operador fechado
4.1281
8Japanese (ja)
閉作用素
3.5098
9Spanish (es)
Operador cerrado
0.8529
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 "Operatore lineare chiuso" in all the time
#LanguagePopularity awardRelative popularity
1German (de)
Abgeschlossener Operator
41 840
2English (en)
Closed linear operator
19 339
3Russian (ru)
Замкнутый оператор
16 520
4Japanese (ja)
閉作用素
13 895
5Italian (it)
Operatore lineare chiuso
12 537
6Spanish (es)
Operador cerrado
7 875
7Portuguese (pt)
Operador fechado
6 073
8Dutch (nl)
Gesloten operator
3 467
9Kazakh (kk)
Тұйық оператор
715
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 "Operatore lineare chiuso" in June 2025
#LanguagePopularity awardRelative popularity
1English (en)
Closed linear operator
634
2German (de)
Abgeschlossener Operator
133
3Japanese (ja)
閉作用素
104
4Russian (ru)
Замкнутый оператор
55
5Spanish (es)
Operador cerrado
30
6Italian (it)
Operatore lineare chiuso
25
7Portuguese (pt)
Operador fechado
8
8Dutch (nl)
Gesloten operator
7
9Kazakh (kk)
Тұйық оператор
4
More...

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

The highest AI

Language versions of the article "Operatore lineare chiuso" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.
#LanguageAI awardRelative AI
1English (en)
Closed linear operator
23
2German (de)
Abgeschlossener Operator
21
3Italian (it)
Operatore lineare chiuso
20
4Russian (ru)
Замкнутый оператор
15
5Dutch (nl)
Gesloten operator
14
6Japanese (ja)
閉作用素
7
7Spanish (es)
Operador cerrado
4
8Kazakh (kk)
Тұйық оператор
3
9Portuguese (pt)
Operador fechado
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 "Operatore lineare chiuso" with the highest AI in June 2025
#LanguageAI awardRelative AI
1German (de)
Abgeschlossener Operator
0
2English (en)
Closed linear operator
0
3Spanish (es)
Operador cerrado
0
4Italian (it)
Operatore lineare chiuso
0
5Japanese (ja)
閉作用素
0
6Kazakh (kk)
Тұйық оператор
0
7Dutch (nl)
Gesloten operator
0
8Portuguese (pt)
Operador fechado
0
9Russian (ru)
Замкнутый оператор
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 "Operatore lineare chiuso" with the highest Citation Index (CI)
#LanguageCI awardRelative CI
1English (en)
Closed linear operator
192
2German (de)
Abgeschlossener Operator
26
3Japanese (ja)
閉作用素
19
4Italian (it)
Operatore lineare chiuso
16
5Dutch (nl)
Gesloten operator
6
6Russian (ru)
Замкнутый оператор
5
7Spanish (es)
Operador cerrado
3
8Portuguese (pt)
Operador fechado
1
9Kazakh (kk)
Тұйық оператор
0
More...

Scores

Estimated value for Wikipedia:
Italian:
Global:
Popularity in June 2025:
Italian:
Global:
Popularity in all years:
Italian:
Global:
Authors in June 2025:
Italian:
Global:
Registered authors in all years:
Italian:
Global:
Citations:
Italian:
Global:

Quality measures

Interwikis

#LanguageValue
deGerman
Abgeschlossener Operator
enEnglish
Closed linear operator
esSpanish
Operador cerrado
itItalian
Operatore lineare chiuso
jaJapanese
閉作用素
kkKazakh
Тұйық оператор
nlDutch
Gesloten operator
ptPortuguese
Operador fechado
ruRussian
Замкнутый оператор

Popularity rank trends

Best Rank Italian:
#206544
04.2008
Global:
#1165005
01.2025

AI rank trends

Best Rank Italian:
#35480
06.2007
Global:
#121196
11.2009

Languages comparison

Important global interconnections (July 2024 – June 2025)

Wikipedia readers most often find their way to information on Closed operator from Wikipedia articles about Closed graph theorem, Unbounded operator, Linear operator, Closed graph theorem and Operator theory. Whereas reading the article about Closed operator people most often go to Wikipedia articles on Open graph, Closed graph theorem, Unbounded operator, Densely defined operator and Closed set.

Cumulative results of quality and popularity of the Wikipedia article

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

News from 26 January 2026

On 26 January 2026 in multilingual Wikipedia, Internet users most often read articles on the following topics: killing of Alex Pretti, Alex Honnold, Nipah virus, A Knight of the Seven Kingdoms, Donald Trump, Sam Darnold, Sinners, U.S. Immigration and Customs Enforcement, Marty Supreme, deaths in 2026.

In Italian Wikipedia the most popular articles on that day were: Niscemi, Sandy Balestra, United States Immigration and Customs Enforcement, Antonio Chichiarelli, Luciano Darderi, Il falsario (film 2025), I peccatori, Uccisione di Alex Pretti, Marty Supreme, La preside.

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