Category:Hyperplanes
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This category contains results about hyperplanes.
Definitions specific to this category can be found in Definitions/Hyperplanes.
Let $X$ be a vector space.
Let $U$ be a proper subspace of $X$.
Definition 1
$U$ is a hyperplane if and only if:
- for all subspaces $Z$ of $X$ containing $U$, we have either $Z = U$ or $Z = X$.
Definition 2
$U$ is a hyperplane (in $X$) if and only if $U$ has codimension $1$ in $X$.
Definition 3
$U$ is a hyperplane (in $X$) if and only if:
- there exists a non-zero linear functional $\phi : X \to \Bbb F$ such that:
- $U = \map \ker \phi$
Pages in category "Hyperplanes"
The following 2 pages are in this category, out of 2 total.