English

Coincidence rotations of the root lattice $A_4$

Metric Geometry 2008-10-22 v1 Combinatorics

Abstract

The coincidence site lattices of the root lattice A4A_4 are considered, and the statistics of the corresponding coincidence rotations according to their indices is expressed in terms of a Dirichlet series generating function. This is possible via an embedding of A4A_4 into the icosian ring with its rich arithmetic structure, which recently (arXiv:math.MG/0702448) led to the classification of the similar sublattices of A4A_4.

Keywords

Cite

@article{arxiv.0709.1341,
  title  = {Coincidence rotations of the root lattice $A_4$},
  author = {Michael Baake and Uwe Grimm and Manuela Heuer and Peter Zeiner},
  journal= {arXiv preprint arXiv:0709.1341},
  year   = {2008}
}

Comments

13 pages, 1 figure

R2 v1 2026-06-21T09:15:34.887Z