Title
Asymptotically optimal neighbor sum distinguishing total colorings of graphs
Abstract
Abstract Given a proper total k -coloring c : V ( G ) ∪ E ( G ) → { 1 , 2 , … , k } of a graph G , we define the value of a vertex v to be c ( v ) + ∑ u v ∈ E ( G ) c ( u v ) . The smallest integer k such that G has a proper total k -coloring whose values form a proper coloring is the neighbor sum distinguishing total chromatic number of G , χ Σ ′ ′ ( G ) . Pilśniak and Woźniak (2013) conjectured that χ Σ ′ ′ ( G ) ≤ Δ ( G ) + 3 for any simple graph with maximum degree Δ ( G ) . In this paper, we prove this bound to be asymptotically correct by showing that χ Σ ′ ′ ( G ) ≤ Δ ( G ) ( 1 + o ( 1 ) ) . The main idea of our argument relies on Przybylo’s proof (2014) regarding neighbor sum distinguishing edge-colorings.
Year
Venue
Field
2017
Discrete Mathematics
Integer,Discrete mathematics,Graph,Combinatorics,Vertex (geometry),Degree (graph theory),Sigma,Asymptotically optimal algorithm,Mathematics
DocType
Volume
Issue
Journal
340
2
Citations 
PageRank 
References 
1
0.37
0
Authors
2
Name
Order
Citations
PageRank
Sarah Loeb142.52
yunfang tang210.37