About a conjecture on the centers of chordal graphs (Q1340128)
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scientific article; zbMATH DE number 700943
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | About a conjecture on the centers of chordal graphs |
scientific article; zbMATH DE number 700943 |
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About a conjecture on the centers of chordal graphs (English)
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18 April 1995
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The authors present a chordal graph \(G\) such that the diameter of its center, \(d(C(G))\), is equal to 3. This example disproves the conjecture of G. J. Chang that \(d(C(G)) \leq 2\) for any connected chordal graph with \(d(G) = 2r(G) - 2\); see \textit{G. J. Chang} [Graph Comb. 7, No. 4, 305-313 (1991; Zbl 0763.05053)].
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Chang conjectures
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chordal graph
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diameter
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center
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