English

Conjugacy classes of groups of prime order in $\mathrm{PGL}_{k+1}(\mathbb{C})$

Algebraic Geometry 2020-11-24 v1

Abstract

Let C\mathbb{C} be the field of complex numbers. Let kk be natural number with k2k \geq 2 and let pp be a rational prime. In this paper we count the number of conjugacy classes of admissible cyclic subgroups of PGLk+1(C)\mathrm{PGL}_{k+1}(\mathbb{C}) of order pp, where with admissible we intend those finite subgroups that can be contained in the automorphism group of a set of points in Pk(C)\mathbb{P}^k(\mathbb{C}) in general position and of cardinality nk+3n\geq k+3. We also describe a kind of association between the conjugacy classes of these groups and show a beautiful relation connecting this type of association and the association between point sets.

Keywords

Cite

@article{arxiv.2011.11046,
  title  = {Conjugacy classes of groups of prime order in $\mathrm{PGL}_{k+1}(\mathbb{C})$},
  author = {Andrea Marinatto},
  journal= {arXiv preprint arXiv:2011.11046},
  year   = {2020}
}