设AG(n,Fq)是Fq上的n维仿射空间,而AG(n,Fq)=AG(n,Fq)∪{0/},AGLn(Fq)是Fq上的n次仿射群.设F是AGLn(Fq)作用下的一个轨道,用L和L·分别表示F中面的交和联生成的集合.讨论了各个轨道生成的集合之间的包含关系,一个面是给定由F生成的集合中一个元素的条件,何时L和L·作成几何格.
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