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Deza graphs with parameters (v,k,k−2,a)
Journal of Combinatorial Designs ( IF 0.5 ) Pub Date : 2020-05-03 , DOI: 10.1002/jcd.21722
Vladislav V. Kabanov 1, 2 , Leonid Shalaginov 1, 2, 3
Affiliation  

A Deza graph with parameters $(v,k,b,a)$ is a $k$-regular graph on $v$ vertices in which the number of common neighbors of two distinct vertices takes two values $a$ or $b$ ($a\leq b$) and both cases exist. In the previous papers Deza graphs with parameters $(v,k,b,a)$ where $k-b = 1$ were characterized. In the paper we characterise Deza graphs with $k-b = 2$.

中文翻译:

带参数 (v,k,k−2,a) 的 Deza 图

带有参数 $(v,k,b,a)$ 的 Deza 图是 $v$ 顶点上的 $k$-正则图,其中两个不同顶点的公共邻居数取两个值 $a$ 或 $b$ ($a\leq b$) 并且两种情况都存在。在之前的论文中,描述了参数为 $(v,k,b,a)$ 的 Deza 图,其中 $kb = 1$。在论文中,我们用 $kb = 2$ 来表征 Deza 图。
更新日期:2020-05-03
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