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A NOTE ON COMPLETELY DISCONNECTING TREES

机译:关于完全断开树的说明

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Ginsburg and Sands defined a procedure for completely disconnecting graphs: each round, remove at most one edge from each component and at most w edges total. Define f_w(g) to be the minimal number of rounds to reduce G to isolated vertices. Prior work of Ginsburg and Sands has determined f_w(P_n) for 2 ≤ w ≤ ∞ and the lead-term asymptotics of f_∞(K_n) and f_2(K_n)). We show that when T is a tree with e edges and max degree at most Δ, f_∞(T) ≤ log Δ/(Δ-1) (e - Δ) + Δ. We also give sharp bounds for some specific families of trees.
机译:Ginsburg和Sands定义了一种完全断开图形的过程:每一轮,从每个分量中删除最多一个边,最多总共删除w个边。将f_w(g)定义为将G减少为孤立顶点的最小回合数。 Ginsburg和Sands的先前工作已确定2≤w≤∞的f_w(P_n)以及f_∞(K_n)和f_2(K_n))的提前项渐近性。我们表明,当T是具有e个边且最大度为Δ的树时,f_∞(T)≤logΔ/(Δ-1)(e-Δ)+Δ。我们还为某些特定的树木科提供了明确的界限。

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