EE8-Lattices and Dihedral Groups

Autor: Ching Hung Lam, Robert L. Griess
Rok vydání: 2011
Předmět:
Zdroj: Pure and Applied Mathematics Quarterly. 7:621-744
ISSN: 1558-8602
1558-8599
DOI: 10.4310/pamq.2011.v7.n3.a6
Popis: We classify integral rootless lattices which are sums of pairs of EE8-lattices (lattices isometric to √ 2 times the E8-lattice) and which define dihedral groups of orders less than or equal to 12. Most of these may be seen in the Leech lattice. Our classification may help understand Miyamoto involutions on lattice type vertex operator algebras and give a context for the dihedral groups which occur in the Glauberman-Norton moonshine theory.
Databáze: OpenAIRE