English

Weyl group of type $E_6$ and K3 surfaces

Algebraic Geometry 2025-01-09 v3 Representation Theory

Abstract

Adapting methods of previous papers by A. Sarti and the author, we construct K3 surfaces from invariants of the Weyl group of type \Erm6\Erm_6. We study in details one of these surfaces, which turns out to have Picard number 2020: for this example, we describe an elliptic fibration (and its singular fibers), the Picard lattice and the transcendental lattice.

Keywords

Cite

@article{arxiv.2411.12500,
  title  = {Weyl group of type $E_6$ and K3 surfaces},
  author = {Cédric Bonnafé},
  journal= {arXiv preprint arXiv:2411.12500},
  year   = {2025}
}

Comments

48 pages, Magma codes included