Long Cycles have the Edge-Erdős-Pósa Property
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We prove that the set of long cycles has the edge-Erdős-Pósa property: for every fixed integer ℓ ≥ 3 and every k ∈ ℕ, every graph G either contains k edge-disjoint cycles of length at least ℓ (long cycles) or an edge set X of size O(k2 logk+kℓ) such that G—X does not contain any long cycle. This answers a question of Birmelé, Bondy, and Reed (Combinatorica 27 (2007), 135-145).
Mathematics Subject Classification (2010)05C70
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