How to prove isomorphisms of quotient rings
97999
Explain these ring isomorphisms
6385
Minimal counterexamples of the isomorphism problem for integral group rings
61491
Complex Ring Isomorphism
39576
Quotient ring being isomorphic to the initial ring
60925
Why these are isomorphic each other for given these rings?
60760
Ring homomorphism and characteristic
90433
Isomorphisms between $(\mathbb Z_4,+)$ and $(U_5,*)$
16602
Proving $M_n(I)\lhd M_n(R)$ and proofs about ideal rings.
91222
Isomorphism between $\mathfrak o(4,\mathbb R)$ and $\mathfrak o (3,\mathbb R) \oplus\mathfrak o (3,\mathbb R) $
30753
Showing there is no ring whose additive group is isomorphic to $\mathbb{Q}/\mathbb{Z}$
93017
Isomorphism between $\Bbb R$ and $\Bbb R(X)$?
44983
Isomorphism of R-modules
40400
Finding an isomorphism between $\mathbb{Z}[i]/(7)$ and $\mathbb{Z}[\sqrt{-2}]/(7)$
5699
The number of ring homomorphisms from $\mathbb{Z}_m$ to $\mathbb{Z}_n$
61732
Prove any group with 3 elements is isomorphic to $\mathbb{Z}_3$
30714
A question on ring homomorphisms and maximal ideals.
98818
Quotient ring of a localization of a ring