Emergent Mind
Above guarantee parameterization for vertex cover on graphs with maximum degree 4
(1812.10808)
Published Dec 27, 2018
in
cs.DS
Abstract
In the vertex cover problem, the input is a graph $G$ and an integer $k$, and the goal is to decide whether there is a set of vertices $S$ of size at most $k$ such that every edge of $G$ is incident on at least one vertex in $S$. We study the vertex cover problem on graphs with maximum degree 4 and minimum degree at least 2, parameterized by $r = k-n/3$. We give an algorithm for this problem whose running time is $O*(1.6253r)$. As a corollary, we obtain an $O*(1.2403k)$-time algorithm for vertex cover on graphs with maximum degree 4.
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