A linear kernel for a planar connected dominating set

Daniel Lokshtanov, Matthias Mnich, Saket Saurabh*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review


We provide polynomial time data reduction rules for connected dominating set on planar graphs and analyze these to obtain a linear kernel for the planar connected dominating set problem. To obtain the desired kernel we introduce a method that we call reduce or refine. Our kernelization algorithm analyzes the input graph and either finds an appropriate reduction rule that can be applied, or zooms in on a region of the graph which is more amenable to reduction. We find this method of independent interest and believe that it will be useful for obtaining linear kernels for other problems on planar graphs.
Original languageEnglish
Pages (from-to)2536-2543
JournalTheoretical Computer Science
Issue number23
Publication statusPublished - 2011
Externally publishedYes

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