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Article #96number theory question
From: dean alvis
Date: Wed, 14 Oct 1992 19:12
Date: Wed, 14 Oct 1992 19:12
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1368 bytes
Let $p$ be an odd prime, and assume $\beta$ is an algebraic integer of the form $$\beta = \sum_\omega \mu_\omega (1-\omega),$$ where the coefficients $\mu_\omega$ are nonnegative rational integers and $\omega$ ranges over the primitive complex $p$-th roots of unity. Assume further that $\beta$ is irrational, so the coefficients don't assume a constant value, that the coefficients of $\beta$ are relatively prime, and that the product of the algebraic conjugates of $\beta$ is a power of $p$ (so the norm of $\beta$, in the field-theoretic sense, is a power of $p$). Does it necessarily follow that $\beta$ has the form $1-\omega$ or $2 Re(1-\omega)$? Any information on this problem would be helpful. Please respond via e-mail to alvisd@natasha.iusb.indiana.edu
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Path: arc1-ca.pugleaf.net!sparky!uunet!ogicse!uwm.edu!ux1.cso.uiuc.edu!news.cso.uiuc.edu!usenet From: alvisd@bronze.ucs.indiana.edu (dean alvis) Newsgroups: sci.math.research Subject: number theory question Message-ID: <Bw4LC2.Dnq@usenet.ucs.indiana.edu> Date: 14 Oct 92 19:12:01 GMT Article-I.D.: usenet.Bw4LC2.Dnq Sender: Daniel Grayson <dan@math.uiuc.edu> Organization: Indiana University Lines: 14 Approved: Daniel Grayson <dan@math.uiuc.edu> Nntp-Posting-Host: bronze.ucs.indiana.edu X-Submissions-To: sci-math-research@uiuc.edu X-Administrivia-To: sci-math-research-request@uiuc.edu