Conference matrices and unimodular lattices
Number Theory
2007-05-23 v1 Combinatorics
Abstract
Conference matrices are used to define complex structures on real vector spaces. Certain lattices in these spaces become modules for rings of quadratic integers. Multiplication of these lattices by non-principal ideals yields simple constructions of further lattices including the Leech lattice.
Cite
@article{arxiv.math/0007116,
title = {Conference matrices and unimodular lattices},
author = {Robin Chapman},
journal= {arXiv preprint arXiv:math/0007116},
year = {2007}
}
Comments
17 pages. Subitted to European Journal of Combinatorics