Sum index, difference index and exclusive sum number of graphs
We consider two recent conjectures made by Harrington, Henninger-Voss, Karhadkar, Robinson and Wong concerning relationships between the sum index, difference index and exclusive sum number of graphs. One conjecture posits an exact relationship between the first two invariants; we show that in fact...
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| Формат: | Journal article |
| Хэл сонгох: | English |
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Springer
2023
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