A General Dependency Structure for Random Graphs and Its Effect on Monotone Properties
Discrete Mathematics
2020-12-04 v1
Abstract
We consider random graphs in which the edges are allowed to be dependent. In our model the edge dependence is quite general, we call it -robust random graph. It means that every edge is present with probability at least , regardless of the presence/absence of other edges. This is more general than independent edges with probability , as we illustrate with examples. Our main result is that for any monotone graph property, the -robust random graph has at least as high probability to have the property as an Erdos-Renyi random graph with edge probability . This is very useful, as it allows the adaptation of many results from classical Erdos-Renyi random graphs to a non-independent setting, as lower bounds.
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Cite
@article{arxiv.2012.02050,
title = {A General Dependency Structure for Random Graphs and Its Effect on Monotone Properties},
author = {Zohre Ranjbar-Mojaveri and Andras Farago},
journal= {arXiv preprint arXiv:2012.02050},
year = {2020}
}
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7 pages