Hilbert's eighteenth problem is one of the 23 Hilbert problems set out in a celebrated list compiled in 1900 by mathematician David Hilbert. It asks three separate questions about lattices and sphere packing in Euclidean space.
Read more about Hilbert's Eighteenth Problem: Symmetry Groups in Dimensions, Anisohedral Tiling in 3 Dimensions, Sphere Packing
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