show · group.fuchsian.fundamental_domain all knowls · up · search:

If $G\subseteq\Gamma$ is a subgroup of the modular group, then a closed set $F\in\mathcal{H}\cup\mathbb{Q}\cup\{\infty\}$ is said to be a fundamental domain for $G$ if:

  1. For any point $z\in\mathcal{H}$ there is a $g\in G$ such that $gz\in F$.
  2. If $z\not=z'\in F$ are equivalent with respect to the action of $G$, that is, if $z'=gz$ for some $g\in G$, then $z$ and $z'$ belong to $\partial F$, the boundary of F.
Knowl status:
  • Review status: reviewed
  • Last edited by David Farmer on 2019-04-11 22:47:15
Referred to by:
History: (expand/hide all) Differences (show/hide)