Coxeter groups, Lorentzian lattices, and K3 surfaces
群论
2007-05-23 v2 代数几何
摘要
The main result of this paper describes the normalizer of a finite parabolic subgroup of a (possibly infinite) Coxeter group. We use this to compute the automorphism groups of some Lorentzian lattices and K3 surfaces.
引用
@article{arxiv.math/9806141,
title = {Coxeter groups, Lorentzian lattices, and K3 surfaces},
author = {Richard E. Borcherds},
journal= {arXiv preprint arXiv:math/9806141},
year = {2007}
}
备注
16 pages, plain tex. References added, minor errors corrected