Free modules and free submodules.
33611
necessary and sufficient condition for trivial kernel of a matrix over a commutative ring
25609
Multiplicity of G-module
22529
The support of a non finitely generated module
138298
Learning about Grothendieck's Galois Theory.
4652
Is $V$ a simple $\text{End}_kV$-module?
140314
A module as an external direct product of the kernel and image of an idempotent function
158062
Sum of free submodules of a module over a PID
92729
Morphism decomposition
70658
Isomorphism between quotient modules
109649
idempotents acting as local identities
8417
Natural $(R/I)$-module structure for an $R$-module $M$ annihilated by $I$
120637
Is there a unique cyclic submodule for every factor dividing the order of a cyclic module?
95942
$k[x]/(x^n)$ module with finite free resolution is free
139828
Finitely Presented Modules and Exact Sequences
32172
Homomorphisms of graded modules
107837
Reloading submodules in IPython
40996
Proving that free modules are flat (without appealing projective modules)