how many ring homomorphisms are there from $\mathbb{Z}_{18} \to \mathbb{Z}_6$
5699
The number of ring homomorphisms from $\mathbb{Z}_m$ to $\mathbb{Z}_n$
148550
Units in quotient ring of $\mathbb Z[X]$
39965
Partition of $\mathbb{Z}_8$ into cosets of Ker(θ)
146990
How to find the number of automorphisms on $\mathbb Z_2\times \mathbb Z_4$
64048
Describe all ring homomorphisms
120183
Prove that $S_3\times\mathbb{Z}_2$ is isomorphic to $D_6$
13764
Homomorphisms from $\mathbb{Z} \rightarrow S_3$.
141124
Automorphisms of the ring $\Bbb Z[x]$ of polynomials with integer coefficients
157915
Isomorphism between the group $(\mathbb Z[x], +)$ and $(\mathbb Q_{>0}, .)$
119702
Showing a bijection between the set of ringhomomorphisms $\mathbb{Z}[i] \to R$ and the set of $x \in R$ for which $x^2+1=0$
61491
Complex Ring Isomorphism
118073
Is the ring $m\mathbb{Z}$ isomorphic to the ring $n\mathbb{Z}$?
82559
Showing two ring homomorphisms that agree on the integers must agree on the rationals
148616
When is a ring homomorphism $A \to A$ surjective but not injective.
11665
Show that $D_{12}$ is isomorphic to $D_6\times C_2$
34990
Ring homomorphism defined on a field
108049
Determining the number of subgroups of $\Bbb Z_{14} \oplus \Bbb Z_{6}$