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Results tagged with short-exact-sequences
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user 98863
For questions about short exact sequences in various contexts, including questions on short exact sequences of groups or modules.
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Short exact sequences every mathematician should know
I saw $0\to \mathbb Z_p\to \mathbb Z_{p^2}\to \mathbb Z_p\to 0$ as an answer, with $p$ prime, but I will add with $p$ not prime and the particular choice $p=10$,
$$0\to \mathbb Z_{10}\to \mathbb Z_{10 …
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