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arXiv · 2303.03896

Connectivity keeping edges of trees in 3-connected or 3-edge-connected graphs

Qing Yang·Yingzhi Tian
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Abstract

Hasunuma [J. Graph Theory 102 (2023) 423-435] conjectured that for any tree $T$ of order $m$, every $k$-connected (or $k$-edge-connected) graph $G$ with minimum degree at least $k+m-1$ contains a tree $T'\cong T$ such that $G-E(T')$ is still $k$-connected (or $k$-edge connected). Hasunuma verified this conjecture for $k\leq 2$. In this paper, we confirm this conjecture for $k=3$.

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Qing Yang, Yingzhi Tian. 2023-03-07. Connectivity keeping edges of trees in 3-connected or 3-edge-connected graphs. https://arxiv.org/abs/2303.03896

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