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The Maschke octic contains 96 pairwise disjoint lines

Algebraic Geometry 2026-01-05 v1 Representation Theory

Abstract

Miyaoka proved that a smooth surface of degree dd in P3(C){\mathbf{P}}^3({\mathbb{C}}) contains at most 2d(d2)2d(d-2) pairwise disjoint lines. In this note, we verify that the Maschke octic contains 9696 pairwise disjoint lines, thereby proving that Miyaoka's bound is optimal for d=8d=8.

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Cite

@article{arxiv.2601.00033,
  title  = {The Maschke octic contains 96 pairwise disjoint lines},
  author = {Cédric Bonnafé},
  journal= {arXiv preprint arXiv:2601.00033},
  year   = {2026}
}

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3 pages