Tutte paths and long cycles in circuit graphs
Tutte paths and long cycles in circuit graphs
复制标题
电路图中的 Tutte 路径和长周期
DOI:
10.1016/j.jctb.2022.07.006
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发表时间:
2023
期刊:
影响因子:
--
通讯作者:
Yu, Xingxing
中科院分区:
文献类型:
--
作者:
Wigal, Michael C.;Yu, Xingxing
Thomassen proved that 4-connected planar graphs are Hamilton connected by showing that every 2-connected planar graph G contains a Tutte path P between any two given vertices, that is, every component of G− P has at most three neighbors on P. In this paper, we prove a quantitative version of this result for circuit graphs, a natural class of planar graphs which includes all 3-connected planar graphs, by further controlling the number of components in G− P. We also give an application of this result by providing a best possible bound for the circumference of essentially 4-connected planar graphs.
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DOI:
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发表时间:
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期刊:
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