Journal for Geometry and Graphics 23 (2019), No. 1, 001--003
Copyright Heldermann Verlag 2019
On the Number of Points at Distance at Least 1 in the Unit Four-Dimensional Cube
Peter Adamko
Dept. of Quantitative Methods, University of Zilina, Univerzitna 8215/1, 010 26 Zilina, Slovakia
peter.adamko@fpedas.uniza.sk
We give an elementary proof of the following theorem: The maximum number of points which one can choose in the unit four-dimensional cube so that all mutual distances are at least one is 17.
Keywords: Extremum, packing of cubes.
MSC: 52C17.
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