Isomorphism of sheaves
72103
Failure of isomorphisms on stalks to arise from an isomorphism of sheaves
55148
Why is this isomorphism $M \otimes_K L \stackrel{\simeq}{\longrightarrow} M^{[L:K]}$ an isomorphism of $M$ - algebras?
59995
Isomorphism between $\mathbb{C}^* $ under multiplication with $\mathbb{C}$ under addition.
26110
Canonical isomorphism between $\mathfrak{so}(3)$ and $\mathbb R^3$ with vector cross product
158142
Total space of a finite rank locally free sheaf, Vakil's 17.1.4 & 17.1.G
120968
Isomorphism of stabilizer over $S_n$ to $S_{n-1}$
28324
Inverse image of the sheaf associated to a module
62711
Canonical map $R/(I\cap J)\rightarrow R/I\times _{R/(I+J)} R/J$ is an isomorphism
50130
$\operatorname{Aut}(V)$ is isomorphic to $S_3$
8654
Global sections of $\mathcal{O}(-1)$ and $\mathcal{O}(1)$, understanding structure sheaves and twisting.
114916
$\mathbb Z_{mn}$ isomorphic to $\mathbb Z_m\times\mathbb Z_n$ whenever $m$ and $n$ are coprime
45270
Surjective endomorphisms of finitely generated modules are isomorphisms
45179
When does the isomorphism $G\simeq \ker(\phi)\times \operatorname{im}(\phi)$? hold?
151047
a non trivial example: $G/H$ is isomorphic to $G$
120288
Semigroup isomorphism
17978
Isomorphism classes of $\mathbb{Z}[i]$ modules.
158975
Isomorphism of centers of isomorphic groups