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An Application of a Construction Theory of Strongly Closed Subgraphs in a Distance-regular Graph

โœ Scribed by A. Hiraki


Publisher
Elsevier Science
Year
1999
Tongue
English
Weight
112 KB
Volume
20
Category
Article
ISSN
0195-6698

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โœฆ Synopsis


Let

be a distance-regular graph with

where r โ‰ฅ 2 and c r +1 > 1. We prove that r = 2 except for the case a 1 = a r +1 = 0 and c r +1 = 2 by showing the existence of strongly closed subgraphs.


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