3 Z3 [x]/(x² + 1) (not reduced mo coefficients did modulo 2).

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
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Using methods like we used in class when
learning about factor rings, consider this
factor ring Z3 [x]/(x² + 1) (note this is
now with coefficients reduced modulo 3, in
class we did modulo 2).
Part a
Compute a minimal set of coset
representatives of the factor ring (like we did
in class) and write down the multiplication
and addition table for this ring.
Part b
Prove or disprove: (x² + 1) C Z3 [x] is a
maximal ideal of this ring.
Transcribed Image Text:Using methods like we used in class when learning about factor rings, consider this factor ring Z3 [x]/(x² + 1) (note this is now with coefficients reduced modulo 3, in class we did modulo 2). Part a Compute a minimal set of coset representatives of the factor ring (like we did in class) and write down the multiplication and addition table for this ring. Part b Prove or disprove: (x² + 1) C Z3 [x] is a maximal ideal of this ring.
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