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There exists no (15,5,4) RBIBD
Authors:Petteri Kaski  Patric R J stergrd
Institution:Petteri Kaski,Patric R. J. Östergård
Abstract:An (n, M, d)q code is a q‐ary code of length n, cardinality M, and minimum distance d. We show that there exists no (15,5,4) resolvable balanced incomplete block design (RBIBD) by showing that there exists no (equidistant) (14,15,10)3 code. This is accomplished by an exhaustive computer search using an orderly algorithm combined with a maximum clique algorithm. © 2001 John Wiley & Sons, Inc. J Combin Designs 9: 227–232, 2001
Keywords:equidistant code  maximum clique  orderly algorithm  resolvable balanced incomplete block design
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