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 language | English |
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Pages (from-to) | 1277-1296 |
Number of pages | 20 |
Journal | SIAM Journal on Discrete Mathematics |
Volume | 33 |
Issue number | 3 |
DOIs | |
State | Published - 1 Jan 2019 |
Keywords
- Algebraic compression
- Kernelization
- Odd cycle transversal
- Vertex cover
ASJC Scopus subject areas
- General Mathematics