One-point Extensions of Polar Spaces

Abstract

Extensions of polar spaces have been studied previously by two authors (1,2]. In [2] many-point extensions were studied, while [1] dealt with one-point extensions. The requirement in [1] that the resulting structure forms a sesqui-graph is equivalent to requiring the extension of the whole point-line-plane-... structure. It follows that an extension of a… (More)
DOI: 10.1016/S0195-6698(13)80038-8

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