Semi-classical projective planes over half-ordered fields

Abstract

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A classification of Minkowski planes over half-ordered fields

“…We furthermore denote by T(lF) the collection of all translations by elements of lF, i.e., GF(9). (The Minkowski planes of order 9 play a special role, compare [19] for the corresponding situation in projective planes. For more details about Minkowski planes of order 9 see [3] and [16].)…”