Hamming graph
A Hamming graph is a graph (mathematics) used in several branches of mathematics and computer science. Let S be a set of q elements and d a positive integer. The Hamming graph H(d,q) has vertex set Sd, the set of ordered d-tuples of elements of S, or sequences of length d from S. Two vertices are adjacent if they differ in precisely one coordinate.
The special case in which q = 2 is also known as the hypercube graph, denoted Qd.
The Hamming graphs are interesting in connection with error-correcting codes and association schemes, to name two areas.
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