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math.MG2023
Dense ball packings by tube manifolds as new models for hyperbolic crystallography
Emil Molnár, Jenő Szirmai
We intend to continue our previous papers (\cite{MSz17} and \cite{MSz18}, as indicated there) on dense ball packing hyperbolic space $\HYP$ by equal balls, but here with centres be…
math.MG2023
Fibre-like cylinders, their packings and coverings in space
Jenő Szirmai
In this paper we define the notion of infinite or bounded fibre-like geodesic cylinder in space, develop a method to determine its vo…