Essential manifold

en

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Essential manifold

Quality:

Essential manifold - compact manifold M whose fundamental class [M] defines a nonzero element under the natural homomorphism Hₙ(M) → Hₙ(K(π₁(M),1)). Article “Essential manifold” in English Wikipedia has 12.1 points for quality (as of July 1, 2025). The article contains 1 references and 5 sections.

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

Since the creation of article “Essential manifold”, its content was written by 19 registered users of English Wikipedia and edited by 25 registered Wikipedia users in all languages.

The article is cited 18 times in English Wikipedia and cited 23 times in all languages.

The highest Authors Interest rank from 2001:

  • Local (English): #214421 in July 2008
  • Global: #454730 in July 2008

The highest popularity rank from 2008:

  • Local (English): #1266054 in December 2009
  • Global: #2128938 in December 2009

There are 3 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
1Ukrainian (uk)
Істотний многовид
12.3011
2English (en)
Essential manifold
12.0999
3Russian (ru)
Существенное многообразие
8.077
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 "Essential manifold" in all the time
#LanguagePopularity awardRelative popularity
1English (en)
Essential manifold
21 488
2Russian (ru)
Существенное многообразие
4 013
3Ukrainian (uk)
Істотний многовид
164
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 "Essential manifold" in June 2025
#LanguagePopularity awardRelative popularity
1English (en)
Essential manifold
76
2Ukrainian (uk)
Істотний многовид
7
3Russian (ru)
Существенное многообразие
6
More...

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

The highest AI

Language versions of the article "Essential manifold" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.
#LanguageAI awardRelative AI
1English (en)
Essential manifold
19
2Russian (ru)
Существенное многообразие
5
3Ukrainian (uk)
Істотний многовид
1
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 "Essential manifold" with the highest AI in June 2025
#LanguageAI awardRelative AI
1English (en)
Essential manifold
0
2Russian (ru)
Существенное многообразие
0
3Ukrainian (uk)
Істотний многовид
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 "Essential manifold" with the highest Citation Index (CI)
#LanguageCI awardRelative CI
1English (en)
Essential manifold
18
2Russian (ru)
Существенное многообразие
4
3Ukrainian (uk)
Істотний многовид
1
More...

Scores

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

Quality measures

Interwikis

#LanguageValue
enEnglish
Essential manifold
ruRussian
Существенное многообразие
ukUkrainian
Істотний многовид

Popularity rank trends

Best Rank English:
#1266054
12.2009
Global:
#2128938
12.2009

AI rank trends

Best Rank English:
#214421
07.2008
Global:
#454730
07.2008

Languages comparison

Important global interconnections (July 2024 – June 2025)

Cumulative results of quality and popularity of the Wikipedia article

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

News from 21 February 2026

On 21 February 2026 in multilingual Wikipedia, Internet users most often read articles on the following topics: Jeffrey Epstein, Alysa Liu, Eric Dane, 2026 Winter Olympics, Rebecca Gayheart, Johannes Høsflot Klæbo, Wuthering Heights, amyotrophic lateral sclerosis, Andrew Mountbatten-Windsor, John F. Kennedy Jr..

In English Wikipedia the most popular articles on that day were: Eric Dane, Alysa Liu, Rebecca Gayheart, Jeffrey Epstein, 2026 Winter Olympics, Eileen Gu, John F. Kennedy Jr., Carolyn Bessette Kennedy, Deaths in 2026, Johannes Høsflot Klæbo.

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