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Results tagged with ac.commutative-algebra
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user 105776
Commutative rings, modules, ideals, homological algebra, computational aspects, invariant theory, connections to algebraic geometry and combinatorics.
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Extensions of modules
Let $M$, $N$ be two modules over a ring $R$, suppose $M$ (resp. $N$) is a non-split extension of $M_2$ by $M_1$ (resp. of $N_2$ by $N_1$) as $R$-modules. We make the following assumption:
(1) $\mathr …
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