Xref: utzoo comp.theory:1592 sci.math:15454 Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!helios!bcm!dimacs.rutgers.edu!seismo!uunet!mcsun!unido!laura!heike-fbi!muenx From: muenx@heike-fbi.informatik.uni-dortmund.de (Holger Muenx) Newsgroups: comp.theory,sci.math Subject: Re: Algebra & Number Theory (& Elliptic Curves Primality Test) Message-ID: <3070@laura.UUCP> Date: 28 Feb 91 21:34:56 GMT References: <3069@laura.UUCP> Sender: news@laura.UUCP Reply-To: muenx@heike-fbi.informatik.uni-dortmund.de (Holger Muenx) Organization: University of Dortmund, Germany Lines: 26 In article <3069@laura.UUCP>, muenx@heike-fbi.informatik.uni-dortmund.de (Holger Muenx) writes: [...] |> Now my problem: They claim that the following is equivalent. |> |> (i) p = x*conj(x) for one x in A |> (ii) u*x is a root of X^2-t*X+p for all units u in A |> |> In (ii) conj(x) is the complex conjugation of x. The implication (ii) => (i) [...] Ooops! First posting, then thinking... :-( Line (ii) above is wrong. It should be: (ii) there is at least one unit a in A so that: u*x is a root of X^2-t*X+p. Now it is right! Sorry!! -Holger =========================================================================== || Holger Muenx, IRB, Universitaet Dortmund, 4600 Dortmund, West-Germany || || Internet: muenx@heike.informatik.uni-dortmund.de || ===========================================================================