Abstract
After reviewing some memories and results of a dear friend and great collaborator, Michel-Marie Deza, a result (Theorem 8) is proven that could have very well been a joint paper, should not he have departed under tragical circumstances. This new result determines the maximum possible size of a family of \((0, \pm \, 1)\)-vectors without three vectors adding up to the all-zero vector.
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Frankl, P. An exact result for \((0, \pm \, 1)\)-vectors. Optim Lett 12, 1011–1017 (2018). https://doi.org/10.1007/s11590-018-1245-y
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DOI: https://doi.org/10.1007/s11590-018-1245-y