Abstract
Consider a connected undirected graph G=(V,E), a subset of vertices C⊆V, and an integer r≥1; for any vertex v∈V, let Br(v) denote the ball of radius r centered at v, i.e., the set of all vertices within distance r from v. If for all vertices v∈V (respectively, v∈V \C), the sets Br(v)∩C are all nonempty and different, then we call C an r-identifying code (respectively, an r-locating-dominating code). We study the smallest cardinalities or densities of these codes in chains (finite or infinite) and cycles.
| Original language | English |
|---|---|
| Pages (from-to) | 969-987 |
| Number of pages | 19 |
| Journal | European Journal of Combinatorics |
| Volume | 25 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - 1 Oct 2004 |
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