J4 ›› 2011, Vol. 46 ›› Issue (6): 49-52.
• Articles •
LUO Jin-mei, ZUO Lian-cui*
A class of connected graphs with the hole index ρ(G)≥1 possessing different ordered sequences of island cardinalities is provided.
island sequences; light vertex;heavy vertex; 2-sparse graph; path covering number
LUO Jin-mei, ZUO Lian-cui*. On the island sequences of L(2,1)-labeling of graphs[J].J4, 2011, 46(6): 49-52.
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