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BipartiteQ-Polynomial Distance-Regular Graphs

✍ Scribed by John S. Caughman IV


Publisher
Springer Japan
Year
2004
Tongue
English
Weight
319 KB
Volume
20
Category
Article
ISSN
0911-0119

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Let Ξ“ be a regular graph with n vertices, diameter D, and d + 1 In a previous paper, the authors showed that if P (Ξ») > n -1, then D ≀ d -1, where P is the polynomial of degree d-1 which takes alternating values Β±1 at Ξ» 1 , . . . , Ξ» d . The graphs satisfying P (Ξ») = n -1, called boundary graphs, h