English

Unimodular lattices in dimensions 14 and 15 over the Eisenstein integers

Number Theory 2026-01-27 v1 Group Theory

Abstract

All indecomposable unimodular hermitian lattices in dimensions 14 and 15 over the ring of integers in Q(3)\mathbb{Q}(\sqrt{-3}) are determined. Precisely one lattice in dimension 14 and two lattices in dimension 15 have minimal norm 3.

Keywords

Cite

@article{arxiv.0710.3664,
  title  = {Unimodular lattices in dimensions 14 and 15 over the Eisenstein integers},
  author = {Kanat Abdukhalikov and Rudolf Scharlau},
  journal= {arXiv preprint arXiv:0710.3664},
  year   = {2026}
}

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17 pages