Title
Minimizing The Number Of 5-Cycles In Graphs With Given Edge-Density
Abstract
Motivated by the work of Razborov about the minimal density of triangles in graphs we study the minimal density of the 5-cycle C5. We show that every graph of order n and size (1- 1/k)(n 2), where k >= 3 is an integer, contains at least(1/10 - 1/2k + 1/k2 - 1/k3 + 2/5k(4))n(5) + o(n(5))copies of C-5. This bound is optimal, since a matching upper bound is given by the balanced complete k-partite graph. The proof is based on the flag algebras framework. We also provide a stability result. An SDP solver is not necessary to verify our proofs.
Year
DOI
Venue
2020
10.1017/S0963548319000257
COMBINATORICS PROBABILITY & COMPUTING
DocType
Volume
Issue
Journal
29
1
ISSN
Citations 
PageRank 
0963-5483
0
0.34
References 
Authors
0
4
Name
Order
Citations
PageRank
P BENNETT1155.42
Andrzej Dudek211423.10
Bernard Lidický301.01
Oleg Pikhurko431847.03