Counterexample to the structure of commutative rings
136985
Every finite commutative ring $R$ must be of the form
10254
Is the Polynomial Factor Theorem true over all commutative rings?
147157
Modules over commutative rings
16643
A slick proof that a field which is finitely generated as a ring is finite
109039
Does this "extension property" for polynomial rings satisfy a universal property?
108930
Show that an operation being commutative is a structural property
30714
A question on ring homomorphisms and maximal ideals.
19838
Prove that in general the set of the right zero divisors is different from the set of left zero divisors in a ring R
47630
Endomorphisms of modules satisfying chain conditions and counterexamples.
6385
Minimal counterexamples of the isomorphism problem for integral group rings
112131
Characterizing all ring homomorphisms $C[0,1]\to\mathbb{R}$.
51428
Do these two observations suffice to show that a finite boolean ring must be of the form $\mathbb{Z}_2\times\cdots\times\mathbb{Z}_2$?
133878
Ring of order $p^2$ is commutative.
39576
Quotient ring being isomorphic to the initial ring
158426
Proving lemma about centrality of idempotent elements in a Ring with no nilpotent elements.
140962
Counterexamples for $G \times H$ isomorphic to $G$ implies $H$ trivial.
124864
A not free $\mathbb{Z}$-module