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= (1) Consider the ring S = R[x]/(x4 + x2). (a) Up to isomorphism, what are the cyclic modules of S? (b) Which of these cyclic modules are projective?
= (1) Consider the ring S = R[x]/(x4 + x2). (a) Up to isomorphism, what are the cyclic modules of S? (b) Which of these
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= (1) Consider the ring S = R[x]/(x4 + x2). (a) Up to isomorphism, what are the cyclic modules of S? (b) Which of these
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