<abstract xmlns="http://www.w3.org/1999/xhtml"><p>For a prime <italic>p</italic>, we prove elementarily that the ring <bold>Z</bold>[√−5, 1/p] is Euclidean if and only if it is a PID iff <italic>p</italic> = 2 or <italic>p</italic> is congruent to 3 or 7 modulo 20.</p></abstract>

For a prime p, we prove elementarily that the ring Z[√−5, 1/p] is Euclidean if and only if it is a PID iff p = 2 or p is congruent to 3 or 7 modulo 20.

Euclidean Quotient Rings of <bold>Z</bold>[√−5]

Faculty of Mathematics and Informatics, University of Bucharest, 14 Academiei Str., Bucharest, RO 010014, Romania

Analele ştiinţifice ale Universităţii "Ovidius" Constanţa. Seria Matematică

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Euclidean Quotient Rings of Z[√−5]

Published Online: Dec 10, 2014

Page range: 121 - 125

Received: Aug 01, 2013

Accepted: Sep 01, 2013

DOI: https://doi.org/10.2478/auom-2014-0010

Keywords
Euclidean domain, PID

© 2014 Tiberiu Dumitrescu and Alexandru Gica

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Euclidean Quotient Rings of Z[√−5]

Published Online: Dec 10, 2014

Page range: 121 - 125

Received: Aug 01, 2013

Accepted: Sep 01, 2013

DOI: https://doi.org/10.2478/auom-2014-0010

KeywordsEuclidean domain, PID

© 2014 Tiberiu Dumitrescu and Alexandru Gica

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
Euclidean domain, PID