Title
An approximate ore-type result for tight Hamilton cycles in uniform hypergraphs.
Abstract
A Hamilton -cycle in a k-uniform hypergraph of n-vertex is an ordering of all vertices, combined with an ordered subset C of edges, such that any two consecutive edges share exactly vertices and each edge in C contains k consecutive vertices.A classic result of O. Ore in 1960 is that if the degree sum of any two independent vertices in an n-vertex graph is at least n, then the graph contains a Hamiltonian cycle. Naturally, we consider to generalize it to hypergraphs situation. In this paper, we prove the following theorems. (i) For any n4k2, there is an n-vertex k-uniform hypergraph, with degree sum of any two strongly independent sets of k1 vertices bigger than 2n4(k1), contains no Hamilton l-cycle, 1k1. (ii) If the degree sum of two weakly independent sets of k1 vertices in an n-vertex k-uniform hypergraph is (1+o(1))n, then the hypergraph contains a Hamilton (k1)-cycle, where two distinct sets of k1 vertices are weakly (strongly) independent if there exist no edge containing the union of them (intersecting both of them).
Year
DOI
Venue
2017
10.1016/j.disc.2017.02.018
Discrete Mathematics
Keywords
Field
DocType
Cycle,Hamiltonian,Hypergraph,Ore-type
Graph center,Discrete mathematics,Combinatorics,Vertex (geometry),Hamiltonian path,Constraint graph,Hypergraph,Distance,Independent set,Mathematics,Path graph
Journal
Volume
Issue
ISSN
340
7
0012-365X
Citations 
PageRank 
References 
0
0.34
4
Authors
2
Name
Order
Citations
PageRank
Yucong Tang100.34
Guiying Yan219622.92