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arXiv 2407.11285math.CO
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射影矩形:线图

Projective Rectangles: The Graph of Lines

Rigoberto Flórez, Thomas Zaslavsky

AI总结:

该研究探讨射影矩形的线图性质,证明此前的主要构造方法可生成射影矩形,同时给出双线性型图的新表示,并提及色数等未解决的图性质与相关部分几何结构。

摘要:

射影矩形类似于射影平面,但其两个方向上的长度可以不同。我们研究了线图的性质,其中邻接关系定义为两条线有公共点,重点研究了其强正则性和团结构。此前一篇论文中提出的射影矩形主要构造方法所得到的矩形,其线图是已知的强正则双线性型图。这一事实不仅证明了该主要构造方法确实能生成射影矩形,还为双线性型图提供了一种新的表示。最后我们提及了几个简单的图性质,比如尚未确定的色数,以及从该图得到的一个部分几何结构。

英文摘要:

A projective rectangle is like a projective plane that may have different lengths in two directions. We develop properties of the graph of lines, in which adjacency means having a common point, especially its strong regularity and clique structure. The main construction of projective rectangles, stated in a previous paper, gives rectangles whose graph of lines is a known strongly regular bilinear forms graph. That fact leads to a proof that the main construction does produce projective rectangles, and also gives a new representation of bilinear forms graphs. We conclude by mentioning a few simple graph properties, such as the chromatic number, which is not known, and a partial geometry obtained from the graph.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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