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WikiProject Mathematics (Rated Start-class, Mid-importance)
WikiProject Mathematics
This article is within the scope of WikiProject Mathematics, a collaborative effort to improve the coverage of Mathematics on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.
Mathematics rating:
Start Class
Mid Importance
 Field:  Foundations, logic, and set theory

(I am not satisfied with that, it is too much jargon, there should be an


example, it does not convey the power of the concept and is just a definition) -- Olivier.

Not only that, but what the heck is it?!?! Seriously, I think good encyclopedia articles should assume that the reader may not know the context of the article. A single introductory sentence describing the context can make all the difference in the world. -- Alan Millar

Link suggestions[edit]

An automated Wikipedia link suggester has some possible wiki link suggestions for the Automorphism article, and they have been placed on this page for your convenience.
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I added the links that made sense. Edward 07:52, 22 Dec 2004 (UTC)


It talks of "if G is centerless" in the examples, but isn't G a group, and so contains the identity, which is commutative by definition, and hence all centers contain the identity? so doesn't this put the talk of a centerless group as impossible? -- Moxmalin

By definition, a group is centerless if its center consists of only the identity. See center of a group. -- Fropuff 00:16, 9 February 2007 (UTC)

Automorphisms of R[edit]

Currently the article states that R has no non-trivial order-preserving field-automorphisms, which is true, but potentially misleading since in fact R has no non-trivial field-automorphisms at all (since the order can be recovered from the field operations, as the positive elements are precisely the nonzero squares). I'm changing it. Algebraist 17:15, 22 March 2008 (UTC)