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- Path: sparky!uunet!haven.umd.edu!darwin.sura.net!zaphod.mps.ohio-state.edu!moe.ksu.ksu.edu!math.ksu.edu!deadend
- From: frandag@math.ksu.edu (Francis Fung)
- Newsgroups: sci.math
- Subject: Re: p prime, p divides ab => pdivides a or b
- Date: 2 Sep 1992 16:50:38 -0500
- Organization: Dept. of Mathematics, Kansas State University
- Lines: 14
- Message-ID: <183cveINN5fs@hilbert.math.ksu.edu>
- References: <Btyo8q.E63@ux1.cso.uiuc.edu> <1992Sep2.183341.32017@mp.cs.niu.edu>
- NNTP-Posting-Host: hilbert.math.ksu.edu
-
- rusin@mp.cs.niu.edu (David Rusin) writes:
-
- >In article <Btyo8q.E63@ux1.cso.uiuc.edu> ceblair@ux1.cso.uiuc.edu (Charles Blair) writes:
- (stuff deleted)
- >(Actually I think I remember some quadratic extensions of Z for
- >which you can show no division algorithm exists but which are still
- >PID's. Readers?)
-
- >dave rusin@math.niu.edu
-
- You can show that {(a+b(\sqrt(-19)))/2 | a and b have the same parity} is
- a PID which is not Euclidean. Details can be found in Grove's Algebra.
- Francis Fung
- PS Hi Dave! Sorry I didn't get to think about spectral sequences much yet :)
-