Example image of eyePlorer eyePlorer map for 'Isometry group': Function composition Group (mathematics) Isometry Mathematics Metric space Set (mathematics) Identity element Identity function Subgroup Symmetry Cartesian coordinate system Triangle Trivial group Cyclic group Permutation group Orthogonal group Sphere Euclidean group Euclidean space Fixed points of isometry groups in Euclidean space Point groups in three dimensions Point groups in two dimensions Spherically symmetric spacetime Centre (geometry) Projective unitary group Reflection group Symmetry group Hyperboloid model Uniformization theorem E7 (mathematics) F4 (mathematics) Witt's theorem Classical group E6 (mathematics) Glide reflection List of small groups Glide plane De Sitter space Killing vector field Null dust solution Spectral theory of ordinary differential equations Nielsen-Thurston classification E8 (mathematics) Reductive dual pair AdS/CFT correspondence Wallpaper group Quadratic form Automorphism Crystallographic restriction theorem Dihedral group