Examples of non semisimple module
30465
Determining which rings have a module which is not semisimple
87382
Non-invertible elements form an ideal
145700
Module isomorphic to second dual
123130
Showing an isomorphism between exterior products of a free module
35401
Examples of finite groups that are not a semidirect product
18003
Standard example where Jacobson radical not equal nilradical
126472
Surjective endomorphisms of uniserial modules
108309
An example of a non-abelian group of order $p^3$
137450
Two-sided ideal generated by subset of not commutative ring
114640
Showing that an ideal is not a free $R-$module.
136592
Examples of manifolds that are not boundaries
16275
Example of a simple module which does not occur in the regular module?
120496
Examples of Non-Noetherian Valuation Rings
151047
a non trivial example: $G/H$ is isomorphic to $G$
22529
The support of a non finitely generated module
70658
Isomorphism between quotient modules
126644
Simple module and homomorphisms