Title
A new generalization of Mantel's theorem to k-graphs
Abstract
Let the k-graph Fan^k consist of k edges that pairwise intersect exactly in one vertex x, plus one more edge intersecting each of these edges in a vertex different from x. We prove that, for n sufficiently large, the maximum number of edges in an n-vertex k-graph containing no copy of Fan^k is @?"i"="1^k@?n+i-1k@?, which equals the number of edges in a complete k-partite k-graph with almost equal parts. This is the only extremal example. This result is a special case of our more general theorem that applies to a larger class of excluded configurations.
Year
DOI
Venue
2007
10.1016/j.jctb.2006.11.003
J. Comb. Theory, Ser. B
Keywords
Field
DocType
turán problem,complete k-partite k-graph,new generalization,pairwise intersect,k-graph fan,mantel's theorem,uniform hypergraph,k edge,general theorem,equal part,extremal example,larger class,n-vertex k-graph,maximum number
Discrete mathematics,Pairwise comparison,Graph,Combinatorics,Vertex (geometry),Mathematics,The Intersect,Special case
Journal
Volume
Issue
ISSN
97
4
Journal of Combinatorial Theory, Series B
Citations 
PageRank 
References 
14
0.91
17
Authors
2
Name
Order
Citations
PageRank
Dhruv Mubayi157973.95
Oleg Pikhurko231847.03