Quaternionic eigenvalue problem

Quality:

Quaternionic eigenvalue problem - spectral theory over the quaternions. Article “Quaternionic eigenvalue problem” in English Wikipedia has 48.2 points for quality (as of July 1, 2026). The article contains 30 references and 14 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.

In June 2026 the article “Quaternionic eigenvalue problem” was edited by 1 authors in English Wikipedia and written by 1 authors in all languages.

Since the creation of article “Quaternionic eigenvalue problem”, its content was written by 1 registered users of English Wikipedia and edited by 1 registered Wikipedia users in all languages.

The highest Authors Interest rank from 2001:

• Local (English): #1279006 in June 2026
• Global: #2461480 in June 2026

There are 2 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) Quaternionic eigenvalue problem		48.205
2	Portuguese (pt) Problema de valor próprio quaterniónico		40.4725

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