ASKSAGE: Sage Q&A Forum - RSS feedhttps://ask.sagemath.org/questions/Q&A Forum for SageenCopyright Sage, 2010. Some rights reserved under creative commons license.Fri, 13 Dec 2013 12:47:59 +0100determine u(R[ x] )?https://ask.sagemath.org/question/7540/determine-ur-x/determine u(R[ x] )?Sun, 24 Nov 2013 18:42:52 +0100https://ask.sagemath.org/question/7540/determine-ur-x/Comment by ppurka for <p>determine u(R[ x] )?</p>
https://ask.sagemath.org/question/7540/determine-ur-x/?comment=16628#post-id-16628What is u, what is R, and what is x?Sun, 24 Nov 2013 20:40:44 +0100https://ask.sagemath.org/question/7540/determine-ur-x/?comment=16628#post-id-16628Answer by John Cremona for <p>determine u(R[ x] )?</p>
https://ask.sagemath.org/question/7540/determine-ur-x/?answer=15808#post-id-15808Are you wanting to find the unit group of an arbitrary polynomial ring? That is more of a mathematical question than a Sage question. If R is commutative then the units in R[X] are the polynomials with unit constant coefficient and all other coefficients nilpotent (exercise), so if R is an integral domain you just get the constant units.
What exactly would you expect from Sage here?
If your question is different, please explain more carefully!Fri, 13 Dec 2013 12:47:59 +0100https://ask.sagemath.org/question/7540/determine-ur-x/?answer=15808#post-id-15808