Erdős–Gyárfás conjecture for $$P_8$$-free graphs

Erdős–Gyárfás conjecture for $$P_8$$-free graphs
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ErdÅsâGyárfá 的 $$P_8$$-free 图猜想

DOI:
10.1007/s00373-022-02578-9
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发表时间:
2022
影响因子:
0.7
通讯作者:
Shan, Songling
Shan, Songling
中科院分区:
数学4区
文献类型:
--
作者:
Gao, Yuping;Shan, Songling

文献摘要

相似文献

一个图是自由的,如果它不包含与路径8顶点同构的诱导子图。1995年,Erdős和Gyárfás推测,每个最小度数至少为3的图都包含一个周期,其长度是2的幂。本文通过证明在最小度至少为3的每一自由图中存在一个长度为4或8的循环,证实了无图的猜想。
A graph is-free if it contains no induced subgraph isomorphic to the pathon eight vertices. In 1995, Erdős and Gyárfás conjectured that every graph of minimum degree at least three contains a cycle whose length is a power of two. In this paper, we confirm the conjecture for-free graphs by showing that there exists a cycle of length four or eight in every-free graph with minimum degree at least three.