A local characterization of the johnson scheme |
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| Authors: | J. I. Hall |
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| Affiliation: | (1) Department of Mathematics, Michigan State University, 48824 East Lansing, Michigan, USA |
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| Abstract: | Within the Johnson schemeI(m, d) we find the graphK(m, d) ofd-subsets of anm-set, two such adjacent when disjoint. Among all connected graphs,K(m, d) is characterized by the isomorphism type of its vertex neighborhoods providedm is sufficiently large compared tod. Partial support provided by NSF (USA), SERC (UK), ZWO (NL). |
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| Keywords: | 05 B 30 |
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