Vertex-distinguishing edge-colorings of
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P. Wittmann
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Article
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1997
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Elsevier Science
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English
⚖ 755 KB
Aigner et al., proved that for the irregular coloring number c(G) of a simple 2-regular graph of order n the inequality c(G) < v'& + 0( 1) holds. Here it is shown that c(G) < & + 0( 1).