Title
0-Sum and 1-Sum Flows in Regular Graphs.
Abstract
Let G be a graph. Assume that l and k are two natural numbers. An l-sum flow on a graph G is an assignment of non-zero real numbers to the edges of G such that for every vertex v of G the sum of values of all edges incident with v equals l. An l-sum k-flow is an l-sum flow with values from the set {+/- 1,...,+/-(k 1)}. Recently, it was proved that for every r, r,>= 3, r not equal 5, every r-regular graph admits a 0-sum 5-flow. In this paper we settle a conjecture by showing that every 5-regular graph admits a 0-sum 5-flow. Moreover, we prove that every r-regular graph of even order admits a 1-sum 5-flow.
Year
Venue
Keywords
2016
ELECTRONIC JOURNAL OF COMBINATORICS
0-sum flow,regular graph,1-sum flow,factor
Field
DocType
Volume
Discrete mathematics,Graph,Natural number,Combinatorics,Vertex (geometry),Regular graph,Real number,Conjecture,Mathematics
Journal
23
Issue
ISSN
Citations 
2.0
1077-8926
0
PageRank 
References 
Authors
0.34
2
3
Name
Order
Citations
PageRank
Saieed Akbari114035.56
Mikio Kano254899.79
Sanaz Zare3113.22