Title
Homological connectedness of random hypergraphs.
Abstract
We consider simplicial complexes that are generated from the binomial random 3-uniform hypergraph by taking the downward-closure. We determine when this simplicial complex is homologically connected, meaning that its first homology group with coefficients in F2 vanishes and the zero-th homology group is isomorphic to F2. Although this is not intrinsically a monotone property, we show that it has a single sharp threshold, and indeed prove a hitting time result relating the connectedness to the disappearance of the last minimal obstruction.
Year
DOI
Venue
2017
10.1016/j.endm.2017.06.049
Electronic Notes in Discrete Mathematics
Keywords
Field
DocType
Random hypergraphs,connectedness,simplicial complexes,phase transition,hitting time
Discrete mathematics,Combinatorics,Social connectedness,Simplicial approximation theorem,Simplicial homology,Simplicial complex,h-vector,Hitting time,Homology (mathematics),Mathematics,Abstract simplicial complex
Journal
Volume
ISSN
Citations 
61
1571-0653
0
PageRank 
References 
Authors
0.34
3
4
Name
Order
Citations
PageRank
Oliver Cooley1399.15
P. E. Haxell221226.40
Mihyun Kang316329.18
Philipp Sprüssel4468.52