A note on triangle-free distance-regular graphs with a2 ≠ 0

Yeh jong Pan*, Chih-wen Weng

*此作品的通信作者

研究成果: Article同行評審

5 引文 斯高帕斯(Scopus)

摘要

Let Γ denote a distance-regular graph with classical parameters (D, b, α, β) and D ≥ 3. Assume the intersection numbers a1 = 0 and a2 ≠ 0. We show that the intersection number c2 is either 1 or 2, and if c2 = 1, then (b, α, β) = (- 2, - 2, ((- 2)D + 1 - 1) / 3).

原文English
頁(從 - 到)266-270
頁數5
期刊Journal of Combinatorial Theory. Series B
99
發行號1
DOIs
出版狀態Published - 1月 2009

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