We study the approximability of a number of graph problems: treewidth and pathwidth of graphs, one-shot black (and black-white) pebbling costs of directed acyclic graphs, and a variety of different graph layout problems such as minimum cut linear arrangement and interval graph completion. We show that, assuming the recently introduced Small Set Expansion Conjecture, all of these problems are hard to approximate within any constant factor. © 2012 Springer-Verlag.
CITATION STYLE
Austrin, P., Pitassi, T., & Wu, Y. (2012). Inapproximability of treewidth, one-shot pebbling, and related layout problems. In Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) (Vol. 7408 LNCS, pp. 13–24). https://doi.org/10.1007/978-3-642-32512-0_2
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