Skip to main content

All Questions

Filter by
Sorted by
Tagged with
5 votes
1 answer
173 views

Projective module which splits off sequence of submodules, but not the sum

Does there exist an example of a module $X$ over some ring $R$ together with submodules $T_i$ such that: $X$ is projective, $X$ splits as an internal direct sum $X\cong T_1\oplus T_2\oplus \ldots \...
nikola karabatic's user avatar