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Double hexagonal close packed
One of two densest possible sphere packings in 3D Euclidean space
Texto: Wikidata, CC BY-SA 4.0. · Imagem: Christophe Dang Ngoc Chan (cdang) (CC BY-SA 3.0) ·
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E★
Earth spheres
Interconnected, interacting layers of the Earth
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H★
Hypergeometric differential equation
Mathematical concept
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S★★
Schrödinger–HJW theorem
Concept in quantum information theory
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Dao's theorem on six circumcenters
Theorem in Euclidean geometry
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S★
Shafran's hexagonal chess
Hexagonal chess variant
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P★
Poincaré homology sphere
Three-dimensional manifold with same homology as the three-dimensional sphere