Finding tight Hamilton cycles in random hypergraphs faster
Abstract
In an -uniform hypergraph on vertices a tight Hamilton cycle consists of edges such that there exists a cyclic ordering of the vertices where the edges correspond to consecutive segments of vertices. We provide a first deterministic polynomial time algorithm, which finds a.a.s. tight Hamilton cycles in random -uniform hypergraphs with edge probability at least . Our result partially answers a question of Dudek and Frieze [Random Structures & Algorithms 42 (2013), 374-385] who proved that tight Hamilton cycles exists already for for and for using a second moment argument. Moreover our algorithm is superior to previous results of Allen, B\"ottcher, Kohayakawa and Person [Random Structures & Algorithms 46 (2015), 446-465] and Nenadov and \v{S}kori\'c [arXiv:1601.04034] in various ways: the algorithm of Allen et al. is a randomised polynomial time algorithm working for edge probabilities , while the algorithm of Nenadov and \v{S}kori\'c is a randomised quasipolynomial time algorithm working for edge probabilities .
Cite
@article{arxiv.1710.08988,
title = {Finding tight Hamilton cycles in random hypergraphs faster},
author = {Peter Allen and Christoph Koch and Olaf Parczyk and Yury Person},
journal= {arXiv preprint arXiv:1710.08988},
year = {2021}
}
Comments
17 pages