Generalized pentagonal geometries
Combinatorics
2021-04-20 v2
Abstract
A pentagonal geometry PENT(, ) is a partial linear space, where every line is incident with points, every point is incident with lines, and for each point , there is a line incident with precisely those points that are not collinear with . Here we generalize the concept by allowing the points not collinear with to form the point set of a Steiner system whose blocks are lines of the geometry.
Cite
@article{arxiv.2104.02760,
title = {Generalized pentagonal geometries},
author = {Anthony D. Forbes and Carrie G. Rutherford},
journal= {arXiv preprint arXiv:2104.02760},
year = {2021}
}
Comments
143 pages, 1 figure. An abridged version, with the Appendix omitted, will be submitted to a journal