From: "C. Hillman" <optimist@u.washington.edu>
Newsgroups: sci.math
Subject: Re: field automorphism of C ...
Date: Fri, 30 Oct 1998 16:59:35 -0800

On Fri, 30 Oct 1998, =AC=FC=C4R=AA=BA=BF=F9=BB~ wrote:

> how many field automorphism of C (complex number) are there? ans.is
> infinite many.. hence,id map ,conjugate map are both . but could
> someone show me another automorphism of C

This is a very good question!  For the answer, see the excellent
expository article, Paul Yale, "Automorphisms of the Complex Numbers",
Mathematics Magazine 39 (1966) 135--141.  This should be available in most
university libraries in the U.S.

Chris Hillman

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Thanks!