Abstract
Let II be a translation plane of orderq 3, with kernel\( \supseteq \) GF(q) forq a prime power, that admits a collineation groupG of orderq 3 in the linear translation complement. Moreover, assume thatG fixes a point at infinity, acts transitively on the remaining points at infinity andG/E is an abelian group of orderq 2, whereE is the elation group ofG.
In this article, we determined all such translation planes. They are (i) elusive planes of type I or II or (ii) desirable planes.
Furthermore, we completely determined the translation planes of orderp 3, forp a prime, admitting a collineation groupG of orderp 3 in the translation complement such thatG fixes a point at infinity and acts transitively on the remaining points at infinity. They are (i) semifield planes of orderp 3 or (ii) the Sherk plane of order 27.
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Akiyama, K., Suetake, C. On translation planes of orderq 3 that admit a collineation group of orderq 3 . Geom Dedicata 55, 1–57 (1995). https://doi.org/10.1007/BF02179084
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DOI: https://doi.org/10.1007/BF02179084