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The Minimum Number of Edges in Uniform Hypergraphs with Property O

Published online by Cambridge University Press:  19 December 2017

DWIGHT DUFFUS
Affiliation:
Mathematics and Computer Science, Emory University, Atlanta, GA 30322, USA (e-mail: dwight@mathcs.emory.edu, bill.w.kay@gmail.com, rodl@mathcs.emory.edu)
BILL KAY
Affiliation:
Mathematics and Computer Science, Emory University, Atlanta, GA 30322, USA (e-mail: dwight@mathcs.emory.edu, bill.w.kay@gmail.com, rodl@mathcs.emory.edu)
VOJTĚCH RÖDL
Affiliation:
Mathematics and Computer Science, Emory University, Atlanta, GA 30322, USA (e-mail: dwight@mathcs.emory.edu, bill.w.kay@gmail.com, rodl@mathcs.emory.edu)

Abstract

An oriented k-uniform hypergraph (a family of ordered k-sets) has the ordering property (or Property O) if, for every linear order of the vertex set, there is some edge oriented consistently with the linear order. We find bounds on the minimum number of edges in a hypergraph with Property O.

Type
Paper
Copyright
Copyright © Cambridge University Press 2017 

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