A Sharp Threshold for Random Graphs with a Monochromatic Triangle in Every Edge Coloring

Author/creator Friedgut, Ehud, 1965- Author
Other author R©œdl, Vojtech Author
Other author Rucinski, Andrzej Author
Other author Tetali, Prasad Author
Format Electronic
Publication InfoProvidence : American Mathematical Society
Description66 p. ill 00.300 x 00.500 cm.
Supplemental ContentFull text available from Ebook Central - Academic Complete
Supplemental ContentFull text available from Memoirs of the American Mathematical Society - Backfile
Subjects

SeriesMemoirs of the American Mathematical Society Ser. 179
Summary Annotation Let $cal{R}$ be the set of all finite graphs $G$ with the Ramsey property that every coloring of the edges of $G$ by two colors yields a monochromatic triangle. In this paper the authors establish a sharp threshold for random graphs with this property. Let $G(n,p)$ be the random graph on $n$ vertices with edge probability $p$. The authors prove that there exists a function $widehat c=widehat c(n)=Theta(1)$ such that for any $varepsilon > 0$, as $n$ tends to infinity,$Prleft[G(n,(1-varepsilon)widehat c/sqrt{n}) in cal{R} ight] ightarrow 0$ and $Pr left[ G(n,(1+varepsilon)widehat c/sqrt{n}) in cal{R} ight] ightarrow 1.$ A crucial tool that is used in the proof and is of independent interest is a generalization of Szemer©♭di's Regularity Lemma to acertain hypergraph setting.
Access restrictionAvailable only to authorized users.
Technical detailsMode of access: World Wide Web
Genre/formElectronic books.
LCCN 2005053660
ISBN9780821838259
ISBN0821838253 (Trade Paper) Active Record
Standard identifier# 9780821838259
Stock numberMEMO/179/845 00001436

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