Dimensional dual hyperovals in projective spaces and c.AGast-geometries

Dimensional dual hyperovals in projective spaces and c.AGast-geometries
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射影空间中的维度对偶超椭圆和 c.AGast 几何

DOI:
10.1016/s0012-365x(01)00399-5
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发表时间:
2002
期刊:
Discret. Math.
影响因子:
--
通讯作者:
C. Huybrechts
C. Huybrechts
中科院分区:
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文献类型:
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作者:
C. Huybrechts

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标题的两个主题首先是独立研究,然后是相互作用。这种互动产生了许多问题。在我们对第一主题的内在研究中,我们构建了一个新的例子家族并定义了商和普遍性的概念。对于第二个主题,我们在两个几何条件(LL)和(T)下限制对偶仿射空间的圆形扩展的 c·AG* 类,通过证明,除了一些极端情况之外,每个这样的三阶几何都可以建立为四阶几何。特别是,满足 (LL) 和 (T) 且 n⩾3 的 c·AGn*(q) 几何结构必须具有 q 偶数。然后我们对第一个受试者推断出类似的结果。
The two subjects of the title are studied, first independently and then by making them interact. Many questions arise from this interaction. In our intrinsic study of the first subject, we construct a new family of examples and define the notions of quotient and universality. For the second subject, we restrict the class c · AG∗of circular extensions of dual affine spaces under the two geometrical conditions (LL) and (T) by showing that, apart from some extreme cases, every such rank three geometry can be erected into a rank 4 geometry. In particular, c · AGn∗(q) -geometries satisfying (LL) and (T) with n⩾3 must have q even. We then deduce similar results for the first subject.
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DOI: --
发表时间: 2007
期刊:
影响因子: --
作者:
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DOI: --
发表时间: 2006
期刊:
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