Citation Link: https://nbn-resolving.org/urn:nbn:de:hbz:467-1996
Parameterabhängige dünne Überdeckungen konvexer Körper
Alternate Title
Thin parametric coverings of convex bodies
Source Type
Doctoral Thesis
Author
Institute
Issue Date
1999
Abstract
The work deals with coverings of translates of centrally symmetric convex bodies in the d -dimensional euclidean space E d . A pointset C n ⊂ E d with n elements is called covering configuration (arrangement) with respect to K if conv C n ⊂ C n + K . With respect to the parametric density ϑ ( K, C n , ρ ) = n ⋅ V ( K )/ V (conv C n + ρK ) optimal (thin) covering configurations are considered, i.e. configurations with minimal density. In the euclidean plane such optimal configurations are fulldimensional for small parameter ρ , while large parameter lead to nearly one dimensional arrangements. For strictly convex bodies the last statement can be extended to arbitrary dimensions d ≥ 2. Those nearly one dimensional optimal configurations are called bones and will be treated detailed. Finally the last chapter deals with covering arrangements which belong to lattice coverings with respect to K . In this case for d = 2 and strictly convex K the optimal configurations can be characterized for all parameter ρ . They are either one dimensional, socalled doublesausages or fulldimensional, depending on the parameter. In the end for the euclidean d -ball the lattices are characterized, for which the optimal arrangement is one dimensional, for large parameter.
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