Integral sum graphs Gn and G-r,n are perfect graphs
AbstractA graph G is an integral sum graph (sum graph) if its vertices can be labeled with distinct integers (positive integers) so that e = uv is an edge of G if and only if the sum of the labels on vertices u and v is also a label in G. A graph G is perfect if the chromatic number of each of its i...
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| Hauptverfasser: | , , , , |
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| Format: | Artigo |
| Sprache: | Inglês |
| Veröffentlicht: |
Taylor & Francis Group
2024-01-01
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| Schriftenreihe: | AKCE International Journal of Graphs and Combinatorics |
| Schlagworte: | |
| Online-Zugang: | https://www.tandfonline.com/doi/10.1080/09728600.2023.2251046 |
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