# Category:Kernels of Group Homomorphisms

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This category contains results about **Kernels of Group Homomorphisms**.

Let $\struct {G, \circ}$ and $\struct {H, *}$ be groups.

Let $\phi: \struct {G, \circ} \to \struct {H, *}$ be a group homomorphism.

The **kernel** of $\phi$ is the subset of the domain of $\phi$ defined as:

- $\map \ker \phi := \phi^{-1} \sqbrk {e_H} = \set {x \in G: \map \phi x = e_H}$

where $e_H$ is the identity of $H$.

That is, $\map \ker \phi$ is the subset of $G$ that maps to the identity of $H$.

## Pages in category "Kernels of Group Homomorphisms"

The following 8 pages are in this category, out of 8 total.