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For questions on modules over rings.

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1 answer
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Homocyclic primary module over PID

I posed the question here, but get no answers yet. Let $R$ be a PID, $M$ be an $R$-module. If $M$ is isomorphic to $r$ copies of cyclic primary module $R/\langle p^s\rangle$ where $p$ is a prime elem …
Binzhou Xia's user avatar