On Bipartite $Q$-Polynomial Distance-Regular Graphs with $c_2 \le 2$

Electronic Journal Of Combinatorics

Stefko Miklavic¹ 

关键词: Distance-regular graphs;    Q-polynomial property;    Equitable partitions;   

DOI  :  

学科分类：离散数学和组合数学

来源: Electronic Journal Of Combinatorics

【 摘 要 】

Let $\Gamma$ denote a bipartite $Q$-polynomial distance-regular graph with diameter $D \ge 4$, valency $k \ge 3$ and intersection number $c_2 \le 2$. We show that $\Gamma$ is either the $D$-dimensional hypercube, or the antipodal quotient of the $2D$-dime

【 授权许可】

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