about isomorphic between polynomial ring
135046
Can this quick way of showing that $K[X,Y]/(Y-X^2)\cong K[X]$ be turned into a valid argument?
42552
Localisation is isomorphic to a quotient of polynomial ring
72211
Isomorphism involving Eilenberg-Maclane space, Tors.
108156
Algebraic closure of $\mathbb{C}(x)$ is isomorphic to $\mathbb{C}$
33781
Is $\mathbb{Z}[x]/(x^2+1)$ isomorphic to $\mathbb{Z}[i]$?
136422
Two finite fields with the same number of elements are isomorphic
90071
Why don't we have an isomorphism between $R[x]$ and $ R[[x]]$?
59995
Isomorphism between $\mathbb{C}^* $ under multiplication with $\mathbb{C}$ under addition.
26749
$\mathbb{Z}[X]/(X^2-1)$ is not isomorphic with $\mathbb{Z}\times \mathbb{Z}$
69384
Are the following modules free and/or isomorphic?
66169
Ring of order $n$ is isomorphic to $\Bbb Z/n\Bbb Z$, with $n$ square-free
89864
Units in finite polynomial rings
119297
Finding invertible polynomials in polynomial ring $\mathbb{Z}_{n}[x]$
83001
Easier way to show $(\mathbb{Z}/(n))[x]$ and $\mathbb{Z}[x] / (n)$ are isomorphic
17978
Isomorphism classes of $\mathbb{Z}[i]$ modules.
118532
Nilradical of polynomial ring
141911
Prove that these two fields are isomorphic.