2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/28588The 4D quasicrystal of Elser and Sloane, obtained from the root lattice E8 by the cut-and-project method, can be parametrized by the points of an 8D torus. This allows for an explicit analysis of its point and inflation symmetry structure.5 pages, 1 figure; to appear in: Aperiodic 97, eds. M. de Boissieu, J. L. Verger-Gaugry and R. Currat, World Scientific, Singapore (1998), in pressCondensed MatterCombinatoricsMetric Geometrytext