Description
Spherical code whose codewords are points on the \(E_7\) lattice normalized to lie on the unit sphere.
Parent
Cousins
- \(E_7\) root lattice
- Sharp configuration — The 63 sets of antipodal pairs of the smallest \(E_7\) lattice shell form a sharp configuration in the projective space \(\mathbb{R}P^6\) [1].
- \(3_{21}\) polytope code — \(3_{21}\) polytope codewords form the minimal lattice-shell code of the \(E_7^{\perp}\) lattice [2].
References
- [1]
- H. Cohn and A. Kumar, “Universally optimal distribution of points on spheres”, Journal of the American Mathematical Society 20, 99 (2006) arXiv:math/0607446 DOI
- [2]
- J. H. Conway and N. J. A. Sloane, “The Cell Structures of Certain Lattices”, Miscellanea Mathematica 71 (1991) DOI
Page edit log
- Victor V. Albert (2022-03-05) — most recent
Cite as:
“\(E_7\) lattice-shell code”, The Error Correction Zoo (V. V. Albert & P. Faist, eds.), 2022. https://errorcorrectionzoo.org/c/eseven_shell