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arXiv 1302.4502math.CO
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一种构造Hjelmslev平面的算法

An Algorithm for constructing Hjelmslev planes

Joanne L. Hall, Asha Rao

摘要:

射影Hjelmselv平面和仿射Hjelmselv平面是射影平面和仿射平面的推广。给出了一种利用射影平面、仿射平面和正交表构造射影Hjelmslev平面和仿射Hjelsmelv平面的算法。我们证明了所有的2-一致射影Hjelmslev平面和所有的2-一致仿射Hjelsmelv平面都可以用这种方法构造。作为推论,证明了所有2-一致仿射Hjelmselv平面都是2-一致射影Hjelmselv平面的子几何。

英文摘要:

Projective Hjelmslev planes and Affine Hjelmselv planes are generalisations of projective planes and affine planes. We present an algorithm for constructing a projective Hjelmslev planes and affine Hjelsmelv planes using projective planes, affine planes and orthogonal arrays. We show that all 2-uniform projective Hjelmslev planes, and all 2-uniform affine Hjelsmelv planes can be constructed in this way. As a corollary it is shown that all 2-uniform Affine Hjelmselv planes are sub-geometries of 2-uniform projective Hjelmselv planes.

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