Abstract
The purpose of this paper is to study the famous Pappus configuration of 9 lines and its dual arrangement. We show among others that by applying the Pappus Theorem to the dual arrangement we obtain the configuration corresponding to the initial data of beginning configuration. We consider also the Pappus arrangements with some additional incidences and we establish algebraic conditions paralleling with these incidences.
Funding Statement
ML-B was partially supported by National Science Centre, Poland, grant 2016/23/\linebreak N/ST1/01363
Acknowledgment
We would like to thank Piotr Pokora and Tomasz Szemberg for helpful remarks. We are also obliged to Grzegorz Malara for assistance with programming some symbolic computations.
Citation
Magdalena LAMPA-BACZYŃSKA. Daniel WÓJCIK. "On the Pappus arrangement of lines, forth and back and to the point." Hokkaido Math. J. 52 (2) 181 - 196, June 2023. https://doi.org/10.14492/hokmj/2021-521
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