Cygan, Marek, Pilipczuk, Marcin, Pilipczuk, Michał, van Leeuwen, Erik Jan and Wrochna, Marcin (2015) Polynomial kernelization for removing induced claws and diamonds. In: 41st International Workshop on Graph-Theoretic Concepts in Computer Science (WG 2015), Munich, Germany, 17-19 Jun 2015. Published in: Graph-Theoretic Concepts in Computer Science : 41st International Workshop, WG 2015, Garching, Germany, June 17-19, 2015, Revised Papers, 9224 pp. 450-455. ISBN 9783662531730.

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Abstract

A graph is called (claw,diamond)-free if it contains neither a claw (a K1,3) nor a diamond (a K4 with an edge removed) as an induced subgraph. Equivalently, (claw,diamond)-free graphs can be characterized as line graphs of triangle-free graphs, or as linear dominoes, i.e., graphs in which every vertex is in at most two maximal cliques and every edge is in exactly one maximal clique.
In this paper we consider the parameterized complexity of the (claw,diamond)-free Edge Deletion problem, where given a graph G and a parameter k, the question is whether one can remove at most k edges from G to obtain a (claw,diamond)-free graph. Our main result is that this problem admits a polynomial kernel. We complement this finding by proving that, even on instances with maximum degree 6, the problem is NP-complete and cannot be solved in time 2o(k)⋅|V(G)|O(1) unless the Exponential Time Hypothesis fail

Item Type:	Conference Item (Paper)
Subjects:	Q Science > QA Mathematics
Divisions:	Faculty of Science, Engineering and Medicine > Science > Computer Science
Library of Congress Subject Headings (LCSH):	Polynomials, Graph theory
Series Name:	Lecture Notes in Computer Science
Journal or Publication Title:	Graph-Theoretic Concepts in Computer Science : 41st International Workshop, WG 2015, Garching, Germany, June 17-19, 2015, Revised Papers
Publisher:	Springer
ISBN:	9783662531730
Editor:	Mayr , Ernst W.
Official Date:	2015
Dates:	Date Event 2015 Accepted
Volume:	9224
Page Range:	pp. 450-455
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access
Funder:	Narodowe Centrum Nauki [Polish National Science Center]
Grant number:	DEC-2013/11/D/ST6/03073, DEC-2012/05/D/ST6/03214
Conference Paper Type:	Paper
Title of Event:	41st International Workshop on Graph-Theoretic Concepts in Computer Science (WG 2015)
Type of Event:	Conference
Location of Event:	Munich, Germany
Date(s) of Event:	17-19 Jun 2015
Related URLs:	Publisher Organisation

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