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determine u(R[ x] )?

asked 2013-11-24 11:42:52 -0500

updated 2015-01-13 15:00:18 -0500

FrédéricC gravatar image

determine u(R[ x] )?

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What is u, what is R, and what is x?

ppurka gravatar imageppurka ( 2013-11-24 13:40:44 -0500 )edit

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answered 2013-12-13 05:47:59 -0500

John Cremona gravatar image

Are 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!

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Asked: 2013-11-24 11:42:52 -0500

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Last updated: Dec 13 '13