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Soft planes and groups (2408.11923v2)
Published 21 Aug 2024 in math.CO and math.GR
Abstract: Finite projective planes are constructed using groups that satisfy simple-looking conditions. The resulting projective planes include many known planes and possibly new ones, and are precisely those having a collineation group fixing a flag $(\infty,L_ \infty )$ and transitive on the flags $ (w,W )$ with $w\notin L_ \infty $ and $\infty\notin W$.
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