Conditions for the Parameters of the Block Graph of Quasi-Symmetric Designs

Electronic Journal Of Combinatorics

Rajendra M. Pawale¹ 

关键词: Quasi-symmetric design;    Strongly regular graph;    Block Graph;   

DOI  :  

学科分类：离散数学和组合数学

来源: Electronic Journal Of Combinatorics

【 摘 要 】

A quasi-symmetric design (QSD) is a 2-$(v,k,\lambda)$ design with intersection numbers $x$ and $y$ with $x< y$. The block graph of such a design is formed on its blocks with two distinct blocks being adjacent if they intersect in $y$ points. It is well

【 授权许可】

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