Title
Rainbow Saturation and Graph Capacities.
Abstract
The t-colored rainbow saturation number rsat(t)(n, F) is the minimum size of a t-edgecolored graph on n vertices that contains no rainbow copy of F, but the addition of any missing edge in any color creates such a rainbow copy. Barrus et al. conjectured that rsat(t)(n, K-s) = Theta(n log n) for every s >= 3 and t >= ((s)(2)). In this short note we prove the conjecture in a strong sense, asymptotically determining the rainbow saturation number for triangles. Our lower bound is probabilistic in spirit, and the upper bound is based on the Shannon capacity of a certain family of cliques.
Year
DOI
Venue
2018
10.1137/17M1155429
SIAM JOURNAL ON DISCRETE MATHEMATICS
Keywords
Field
DocType
rainbow saturation,Shannon capacity,cross-intersecting families
Discrete mathematics,Graph,Binary logarithm,Combinatorics,Saturation (chemistry),Vertex (geometry),Upper and lower bounds,Rainbow,Channel capacity,Conjecture,Mathematics
Journal
Volume
Issue
ISSN
32
2
0895-4801
Citations 
PageRank 
References 
0
0.34
3
Authors
1
Name
Order
Citations
PageRank
Dániel Korándi123.45