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Conjecture on stationary orthocenters in Poncelet triangle families
Let $X_4$ be the orthocenter of a Poncelet triangle family interscribed between two conics. The configurations called focal- $X_4$ , MacBeath, and Dual are the three configurations i…
Conjectureopenconic-configurations poncelet-porisms triangle-geometryarXiv posted 2 days ago

Conjecture on stationary orthocenters in Poncelet triangle families