Weak isometries of the Boolean cube
De Winter, S. · Korb, M.
Original · EN
Consider the metric space C consisting of the n-dimensional Boolean cube equipped with the Hamming distance. A weak isometry of C is a permutation of C preserving a given subset of Hamming distances. In Krasin Krasin showed that in most cases preserving a single Hamming distance forces a weak isometry to be an isometry. In this article we study those weak isometries that are not automatically an isometry, providing a complete classification of weak isometries of C.
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