A note on the degree monotonicity of cages

A note on the degree monotonicity of cages
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发表时间:
2004
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通讯作者:
P. Wang;Q. Yu
P. Wang;Q. Yu
中科院分区:
其他
文献类型:
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作者:
P. Wang;Q. Yu

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图A (k; g)是周长为g的k正则图。图A (k; g)是顶点数最少的图(k; g)。(k; g)笼的阶用f(k; g)表示。本文证明了当k≥2时f(k + 2; g)≥f(k; g),并给出了部分结果来支持当k1 < k2时f(k1; g) < f(k2; g)的猜想。
A (k; g)-graph is a k-regular graph with girth g. A (k; g)-cage is a (k; g)-graph with the least number of vertices. The order of a (k; g)-cage is denoted by f(k; g). In this paper we show that f(k + 2; g) ≥ f(k; g) for k ≥ 2 and present some partial results to support the conjecture that f(k1; g) < f(k2; g) if k1 < k2.