(a) The polynomial x + I is a unit in the power series ring Z[[x]], but is...
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(a) The polynomial x + I is a unit in the power series ring Z[[x]], but is not a unit in Z[x].
(b) x2 + 3x + 2 is irreducible in Z[[x]], but not in Z[x].
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a In the power series ring Zx every element has a unique representation as a power series with coeff...View the full answer
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Related Book For
Algebra Graduate Texts In Mathematics 73
ISBN: 9780387905181
8th Edition
Authors: Thomas W. Hungerford
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