Reversion Porisms in Conics
Algebraic Geometry
2021-08-17 v1
Abstract
We give a projective proof of the butterfly porism for cyclic quadrilaterals and present a general reversion porism for polygons with an arbitrary number of vertices on a conic. We also investigate projective properties of the porisms.
Cite
@article{arxiv.2108.07213,
title = {Reversion Porisms in Conics},
author = {Lorenz Halbeisen and Norbert Hungerbühler and Marco Schiltknecht},
journal= {arXiv preprint arXiv:2108.07213},
year = {2021}
}
Comments
12 figures