Making Kr+1-Free Graphs r-partite

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2019-09-30
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Balogh, József
Clemen, Felix Christian
Lavrov, Mikhail
Lidický, Bernard
Pfender, Florian
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Lidicky, Bernard
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Mathematics
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Mathematics
Abstract

The Erdos-Simonovits stability theorem states that for all epsilon > 0 there exists alpha > 0 such that if G is a Kr+1-free graph on n vertices with e(G) > ex(n, Kr+1)-alpha n2, then one can remove epsilon n2 edges from G to obtain an r-partite graph. Furedi gave a short proof that one can choose alpha = epsilon. We give a bound for the relationship of alpha and epsilon which is asymptotically sharp as epsilon right arrow 0.

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This pre-print is made available through arixiv: https://arxiv.org/abs/1910.00028.

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Tue Jan 01 00:00:00 UTC 2019
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