For unit-row matrices, the maximal average sup-norm over Rademacher vectors is sqrt(2 log(2n)) - log log(2n)/(2 sqrt(2 log(2n))) + o(1/sqrt(log n)) for explicit Hadamard-based matrices and random sign matrices, with extremizers shown to induce nearly equal-volume, isoperimetrically optimal Voronoi…
A partition of the hypercube into maximally nonparallel Hamming codes
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By using the Gold map, we construct a partition of the hypercube into cosets of Hamming codes such that for every two cosets the corresponding Hamming codes are maximally nonparallel, that is, their intersection cardinality is as small as possible to admit nonintersecting cosets.
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The Structure of Extremal Bad Science Matrices
For unit-row matrices, the maximal average sup-norm over Rademacher vectors is sqrt(2 log(2n)) - log log(2n)/(2 sqrt(2 log(2n))) + o(1/sqrt(log n)) for explicit Hadamard-based matrices and random sign matrices, with extremizers shown to induce nearly equal-volume, isoperimetrically optimal Voronoi…