
doi: 10.1007/bf02574047
A ball covering of Euclidean \(d\)-space \(E^d\) is called \(n\)-stable if no subset of \(n\) balls can be moved such that the covering property is maintained. The covering is said to be finitely stable if it is \(n\)- stable for every positive integer \(n\). The authors prove that the thinnest cubic-lattice ball covering of \(E^d\) is not finitely stable. The proof is provided using the so-called cabling method which deals with a number of cable frameworks connecting centers of the balls and some intersections of the balls. It is shown that a sphere covering of \(E^d\) with unit balls whose centers form a discrete point set is finitely stable if and only if the corresponding cable frameworks are finitely rigid.
510.mathematics, sphere covering, rigid, Packing and covering in \(n\) dimensions (aspects of discrete geometry), ball, \(n\)-stable covering, cable frameworks, Article
510.mathematics, sphere covering, rigid, Packing and covering in \(n\) dimensions (aspects of discrete geometry), ball, \(n\)-stable covering, cable frameworks, Article
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