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The metric dimension μ is the smallest size of a resolving set for Γ.
A resolving set for a graph Γ is a collection of vertices S, chosen so that for each vertex v, the list of distances from v to the members of S uniquely specifies v.
In this paper, we study source location from a deterministic point of view by modeling it as the minimum cost doubly resolving set (DRS) problem, which is a strengthening of the well-known metric dimension problem.
In this paper, two similar NP-hard optimization problems on graphs are considered: the metric dimension problem and the problem of determining a doubly resolving set with the minimum cardinality.
A set of vertices S in a graph G is a resolving set for G if, for any two vertices u,v, there exists x∈S such that the distances d u,x ≠d v,x).
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In this paper, we consider the Johnson graphs J n,k) and Kneser graphs K n,k), and obtain various constructions of resolving sets for these graphs.
As well as general constructions, we show that various interesting combinatorial objects can be used to obtain resolving sets in these graphs, including (for Johnson graphs) projective planes and symmetric designs, as well as (for Kneser graphs) partial geometries, Hadamard matrices, Steiner systems and toroidal grids.
DAVID CAMERON's announcement on the morning of September 19th that the constitutional status of England must be resolved set off a political storm.
Also, Central America became the first regional conflict of the Cold War era that the United States and the Soviet Union under Mikhail Gorbachev worked together to resolve, setting the stage for further breakthroughs in U.S.-Soviet relations.
The heat of his flagrant resolve sets my middle-aged heart on fire.
For the liquid chromatography MS run, the quadrupole was not resolving and set at m/z 350 and the collision energy set at 1.5 eV.
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