On Thresholds for the Appearance of 2-cores in Mixed Hypergraphs
Data Structures and Algorithms
2012-04-11 v1
Abstract
We study thresholds for the appearance of a 2-core in random hypergraphs that are a mixture of a constant number of random uniform hypergraphs each with a linear number of edges but with different edge sizes. For the case of two overlapping hypergraphs we give a solution for the optimal (expected) number of edges of each size such that the 2-core threshold for the resulting mixed hypergraph is maximized. We show that for adequate edge sizes this threshold exceeds the maximum 2-core threshold for any random uniform hypergraph, which can be used to improve the space utilization of several data structures that rely on this parameter.
Keywords
Cite
@article{arxiv.1204.2131,
title = {On Thresholds for the Appearance of 2-cores in Mixed Hypergraphs},
author = {Michael Rink},
journal= {arXiv preprint arXiv:1204.2131},
year = {2012}
}