Quotient Ring is Isomorphic to product of fields
108898
An Analogue of CRT for Polynomial Ring
70658
Isomorphism between quotient modules
146334
Are there fields $F$ such that the rings $F[x]/(x^2)$ and $F[x]/(x^2-1)$ are isomorphic?
158232
Tensor product of a module with an ideal is isomorphic to their standard product
25793
Extension fields isomorphic to fields of matrices
18540
Isomorphism from $\mathbb{C}[G]$ to $\prod_{i=1}^h M_{n_i}(\mathbb{C})$.
60925
Why these are isomorphic each other for given these rings?
1686
Show that quotient rings are not isomorphic
136422
Two finite fields with the same number of elements are isomorphic
107821
The ring of integers of $\mathbf{Q}[i]$
105913
Calculations in quotient rings
129025
Quotient ring local if Ring is local
40975
Quotient of the ring of integers of a number field by a prime ideal
44983
Isomorphism of R-modules
149856
Image of ring homomorphism is a subring
94579
$\mathbb{Q}[x,y]/\langle x^2+y^2-1 \rangle$ is an integral domain, and its field of fractions is isomorphic to $\mathbb Q(t)$
6171
Isomorphism between $\Bbb{Z}[\sqrt{d}]$ and a quotient of $\Bbb{Z}[X].$