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math.CO2011★ 18 cited
Neighbour transitivity on codes in Hamming graphs
Neil I. Gillespie, Cheryl E. Praeger
We consider a \emph{code} to be a subset of the vertex set of a \emph{Hamming graph}. In this setting a \emph{neighbour} of the code is a vertex which differs in exactly one entry…
math.CO2011
Uniqueness of certain completely regular Hadamard codes
Neil I. Gillespie, Cheryl E. Praeger
We classify binary completely regular codes of length with minimum distance for and . We prove that such codes are unique up to equivalence, and in p…