Labeling trees with a condition at distance two
Labeling trees with a condition at distance two
复制标题
用距离为 2 的条件标记树
DOI:
10.1016/s0012-365x(02)00750-1
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发表时间:
2003
期刊:
影响因子:
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通讯作者:
D. Mauro
中科院分区:
文献类型:
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作者:
J. Georges;D. Mauro
For positive integers j⩾k, an L(j,k)-labeling of graph G is an integer labeling of V(G) such that adjacent vertices receive labels which differ by at least j, and vertices that are distance two apart receive labels which differ by at least k. The λj,k-number of G is the minimum span over the L(j,k)-labelings of G. In this paper, we derive the λj,k-number of the infinite regular tree. For x=j/k, we also introduce a rational variation λx(G) of λj,k(G), and provide a proof that λx(G) is continuous.
DOI:
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