Kernel of homomorphism $f(x)=e^{2\pi ix}$
44400
$e^{2\pi i x} = (e^{2\pi i})^x$: What happens if x is rational?
158282
Finite order of an element $f(g)$ of a homomorphism $f$
51695
Finding all homomorphisms between $\mathbb{Z}/m\mathbb{Z}$ and $\mathbb{Z}/n\mathbb{Z}$
152306
Finding homomorphisms from $\mathbb Z_{12}$ to $\mathbb Z_{6}$.
26661
Ring homomorphisms from $\mathbb{Z}_n$ to $\mathbb{Z}_m$
26665
When does the kernel of a function equal the image?
27670
Group homomorphisms $\mathbb{Q}\to\mathbb{R}$
126644
Simple module and homomorphisms
5906
All group homomorphism from $ \mathbb{Z} _m $ to $\mathbb{Z}_n $
7890
Prove the map $\Phi:G\to\operatorname{Aut}G$ with $g\mapsto (x\mapsto g^{-1}xg)$ is an homomorphism.
48818
Homomorphism of local rings
157296
Homeomorphism between the Unit Disc and Complex Plane
83815
Identify the universal property of kernels
83710
Order of a homomorphism of groups
23037
Computing the order of $\mathrm{SL}_2(\mathbb F_p)$ as the kernel of $\mathrm{GL}_2(\mathbb F_p)$
44396
Noetherian Ring under a Homomorphism / homomorphic function / map
92211
When are $\mathbb Z_m$ and $\mathbb Z_n$ homomorphic?