Title
Feedback vertex sets in cubic multigraphs
Abstract
A set of vertices of a multigraph whose removal produces a forest is a feedback vertex set. For a connected cubic multigraph G of order n at least 9, we show the existence of a feedback vertex set of order at most 1 3 ( n + 2 ¿ + m e + k 4 + ) , where ¿ is the number of loops of G , m e is the number of multiple edges of G , and k 4 + is the number of submultigraphs of G that arise from K 4 by subdividing one edge. This bound is best possible and implies several known bounds.
Year
DOI
Venue
2015
10.1016/j.disc.2015.05.029
Discrete Mathematics
Keywords
Field
DocType
Feedback vertex set,Induced forest
Discrete mathematics,Combinatorics,Multigraph,Vertex (geometry),Vertex (graph theory),Neighbourhood (graph theory),Multiple edges,Mathematics,Feedback vertex set
Journal
Volume
Issue
ISSN
338
12
0012-365X
Citations 
PageRank 
References 
4
0.54
7
Authors
2
Name
Order
Citations
PageRank
Michael Gentner1224.46
Dieter Rautenbach2946138.87