2009/07/26 by Gregory Gutin, Gutin, Gregory, Eun Jung Kim +5
Computer Science · Engineering · #Advanced Graph Theory Research #graph theory and CDMA systems #Complexity and Algorithms in Graphs
paper · pdf · doi:10.48550/arxiv.0907.4488
We study the well-known Vertex Cover problem parameterized above and below tight bounds. We show that two of the parameterizations (both were suggested by Mahajan, Raman and Sikdar, J. Computer and System Sciences, 75(2):137--153, 2009) are fixed-parameter tractable and two other parameterizations are W[1]-hard (one of them is, in fact, W[2]-hard).