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- W2281501900 abstract "We prove that every 3-connected planar graph on n vertices contains an induced path on Ω(logn) vertices, which is best possible and improves the best known lower bound by a multiplicative factor of loglogn. We deduce that any planar graph (or more generally, any graph embeddable on a fixed surface) with a path on n vertices, also contains an induced path on Ω(logn) vertices. We conjecture that for any k, there is a positive constant c(k) such that any k-degenerate graph with a path on n vertices also contains an induced path on Ω((logn)c(k)) vertices. We provide examples showing that this order of magnitude would be best possible (already for chordal graphs), and prove the conjecture in the case of interval graphs." @default.
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- W2281501900 date "2017-05-01" @default.
- W2281501900 modified "2023-10-18" @default.
- W2281501900 title "Long induced paths in graphs" @default.
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- W2281501900 doi "https://doi.org/10.1016/j.ejc.2016.11.011" @default.
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