If Sheaf of rings is retargeted or is expanded into a separate article, template, or other project page, this redirect will be recategorized to be updated.
From a more specific name: This is a redirect from a title that is a more specific name to a less specific, more general one.
It may be a more specialized term, include extraneous identifiers, or simply be worded more narrowly. It leads to the title in accordance with the naming conventions for common names and can help writing and searches. It is not necessary to replace these redirected links with a piped link.
To a related topic: This is a redirect to an article about a similar topic.
Redirects from related topics are different than redirects from related words, because a related topic is more likely to warrant a full and detailed description in the target article. If this redirect's subject is notable, then also tag it with {{R with possibilities}} and {{R printworthy}}.
When appropriate, protection levels are automatically sensed, described and categorized.