English

Real line arrangements with Hirzebruch property

Algebraic Geometry 2018-06-13 v2 Combinatorics Differential Geometry Geometric Topology

Abstract

A line arrangement of 3n3n lines in CP2\mathbb CP^2 satisfies Hirzebruch property if each line intersect others in n+1n+1 points. Hirzebruch asked if all such arrangements are related to finite complex reflection groups. We give a positive answer to this question in the case when the line arrangement in CP2\mathbb CP^2 is real, confirming that there exist exactly four such arrangements.

Keywords

Cite

@article{arxiv.1607.07709,
  title  = {Real line arrangements with Hirzebruch property},
  author = {Dmitri Panov},
  journal= {arXiv preprint arXiv:1607.07709},
  year   = {2018}
}

Comments

Minor changes and the misattributed names of complex reflection arrangements are corrected