A unimodular integral lattice in $\mathbb{R}^{24}$. Related to the monster group.
E8 lattice?
See also:
Relation to the octonions:
Robert A. Wilson, Octonions and the Leech lattice, Journal of Algebra, Volume 322, Issue 6, 15 September 2009, Pages 2186-2190, (pdf, slides)
Robert A. Wilson, A new approach to the Leech lattice, talk at University of Cambridge, 21st October 2009 (slides pdf)
Relation to heterotic string theory
Last revised on August 27, 2019 at 06:40:39. See the history of this page for a list of all contributions to it.