Title
Isomorphism for graphs of bounded feedback vertex set number
Abstract
This paper presents an ${\mathcal O}(n^2)$ algorithm for deciding isomorphism of graphs that have bounded feedback vertex set number. This number is defined as the minimum number of vertex deletions required to obtain a forest. Our result implies that Graph Isomorphism is fixed-parameter tractable with respect to the feedback vertex set number. Central to the algorithm is a new technique consisting of an application of reduction rules that produce an isomorphism-invariant outcome, interleaved with the creation of increasingly large partial isomorphisms.
Year
DOI
Venue
2010
10.1007/978-3-642-13731-0_9
SWAT
Keywords
Field
DocType
fixed-parameter tractable,feedback vertex set number,isomorphism-invariant outcome,minimum number,mathcal o,graph isomorphism,bounded feedback vertex set,large partial isomorphisms,vertex deletion,new technique,feedback vertex set
Discrete mathematics,Combinatorics,Graph isomorphism,Vertex (graph theory),Neighbourhood (graph theory),Cycle graph,Vertex cover,Feedback vertex set,Feedback arc set,Mathematics,Maximal independent set
Conference
Volume
ISSN
ISBN
6139
0302-9743
3-642-13730-X
Citations 
PageRank 
References 
20
0.79
26
Authors
2
Name
Order
Citations
PageRank
Stefan Kratsch156142.59
Pascal Schweitzer221416.94