Smallest polyhedral tilings of 3-tori by parallelohedra
BEITRAGE ZUR ALGEBRA UND GEOMETRIE-CONTRIBUTIONS TO ALGEBRA AND GEOMETRY(2020)
摘要
There are two parallelohedra in dimension 2 and five in dimension 3. We study smallest polyhedral quotients of the tilings defined by them on tori. For 2-tori the situation is well understood, and the three minimal models are well known. Here we investigate the five 3-dimensional cases with the result: Each of the five parallelohedra admits a minimal (and weakly neighborly) model, moreover in three cases this is unique up to natural equivalence. Altogether there are 14 inequivalent minimal models.
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关键词
Lattice tiling, Quotient of lattices, Tessellation, Dirichlet-Voronoi cell, Cube, Hexagonal prism, Rhombic dodecahedron, Elongated dodecahedron, Truncated octahedron
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