Rank vertex cover as a natural problem for algebraic compression

Syed M. Meesum, Fahad Panolan, Saket Saurabh, Meirav Zehavi

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

The question of the existence of a polynomial kernelization of the Vertex Cover Above LP problem was a long-standing, notorious open problem in parameterized complexity. Some years ago, the breakthrough work by Kratsch and Wahlström on representative sets finally answered this question in the affirmative [FOCS 2012]. In this paper, we present an alternative, algebraic compression of the Vertex Cover Above LP problem into the Rank Vertex Cover problem. Here, the input consists of a graph G, a parameter k, and a bijection between V(G) and the set of columns of a representation of a matroid M, and the objective is to find a vertex cover whose rank is upper bounded by k.

Original languageEnglish
Pages (from-to)1277-1296
Number of pages20
JournalSIAM Journal on Discrete Mathematics
Volume33
Issue number3
DOIs
StatePublished - 1 Jan 2019

Keywords

  • Algebraic compression
  • Kernelization
  • Odd cycle transversal
  • Vertex cover

ASJC Scopus subject areas

  • General Mathematics

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