Sigma Coloring and Edge Deletions
A vertex coloring c : V(G) → N of a non-trivial graph G is called a sigma coloring if σ(u) is not equal to σ(v) for any pair of adjacent vertices u and v. Here, σ(x) denotes the sum of the colors assigned to vertices adjacent to x. The sigma chromatic number of G, denoted by σ(G), is defined as the...
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| Main Authors: | , , , |
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Archīum Ateneo
2020
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| 在線閱讀: | https://archium.ateneo.edu/mathematics-faculty-pubs/149 https://archium.ateneo.edu/cgi/viewcontent.cgi?article=1148&context=mathematics-faculty-pubs |
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| 機構: | Ateneo De Manila University |