Salvato in:
| Autori principali: | , , |
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| Natura: | Preprint |
| Pubblicazione: |
2017
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| Soggetti: | |
| Accesso online: | https://arxiv.org/abs/1707.02254 |
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Sommario:
- In this paper, we give a relationship between the covering number of a simple graph $G$, $β(G)$, and a new parameter associated to $G$ which is called 2-degree-packing number of $G$, $ν_2(G)$. We prove that$$\lceil ν_{2}(G)/2\rceil\leqβ(G)\leqν_2(G)-1,$$ for any connected simple graph $G$, with $|E(G)|>ν_2(G)$, and we give a characterization of simple connected graphs which attains the inequalities.