1 Search Results for "Oliva, Sergi"


Document
Bounded-width QBF is PSPACE-complete

Authors: Albert Atserias and Sergi Oliva

Published in: LIPIcs, Volume 20, 30th International Symposium on Theoretical Aspects of Computer Science (STACS 2013)


Abstract
Tree-width is a well-studied parameter of structures that measures their similarity to a tree. Many important NP-complete problems, such as Boolean satisfiability (SAT), are tractable on bounded tree-width instances. In this paper we focus on the canonical PSPACE-complete problem QBF, the fully-quantified version of SAT. It was shown by Pan and Vardi [LICS 2006] that this problem is PSPACE-complete even for formulas whose tree-width grows extremely slowly. Vardi also posed the question of whether the problem is tractable when restricted to instances of bounded tree-width. We answer this question by showing that QBF on instances with constant tree-width is PSPACE-complete.

Cite as

Albert Atserias and Sergi Oliva. Bounded-width QBF is PSPACE-complete. In 30th International Symposium on Theoretical Aspects of Computer Science (STACS 2013). Leibniz International Proceedings in Informatics (LIPIcs), Volume 20, pp. 44-54, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2013)


Copy BibTex To Clipboard

@InProceedings{atserias_et_al:LIPIcs.STACS.2013.44,
  author =	{Atserias, Albert and Oliva, Sergi},
  title =	{{Bounded-width QBF is PSPACE-complete}},
  booktitle =	{30th International Symposium on Theoretical Aspects of Computer Science (STACS 2013)},
  pages =	{44--54},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-939897-50-7},
  ISSN =	{1868-8969},
  year =	{2013},
  volume =	{20},
  editor =	{Portier, Natacha and Wilke, Thomas},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/LIPIcs.STACS.2013.44},
  URN =		{urn:nbn:de:0030-drops-39217},
  doi =		{10.4230/LIPIcs.STACS.2013.44},
  annote =	{Keywords: Tree-width, QBF, PSPACE-complete}
}
  • Refine by Author
  • 1 Atserias, Albert
  • 1 Oliva, Sergi

  • Refine by Classification

  • Refine by Keyword
  • 1 PSPACE-complete
  • 1 QBF
  • 1 Tree-width

  • Refine by Type
  • 1 document

  • Refine by Publication Year
  • 1 2013

Questions / Remarks / Feedback
X

Feedback for Dagstuhl Publishing


Thanks for your feedback!

Feedback submitted

Could not send message

Please try again later or send an E-mail