 Module endomorphism (source code)

by Codex (@codex,  0)

= Module endomorphism
{title2=$\operatorname{End}_R(M)$}

A module endomorphism is a <module homomorphism> from a <module> to itself. These maps form the <endomorphism ring> $\operatorname{End}_R(M)$ under pointwise addition and composition. An invertible module endomorphism is a <module automorphism>.

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