QCSP on semicomplete digraphs

Dapić, Petar, Marković, Petar and Martin, Barnaby (2014) QCSP on semicomplete digraphs. Automata, Languages, and Programming: 41st International Colloquium, ICALP 2014, Copenhagen, Denmark, July 8-11, 2014, Proceedings, Part I. In: 41st International Colloquium on Automata, Languages and Programming, ICALP 2014, 8-11 Jul 2014, Copenhagen, Denmark. ISBN 9783662439470. ISSN 0302-9743

PDF - Final accepted version (with author's formatting)
Download (285kB) | Preview


We study the (non-uniform) quantified constraint satisfaction
problem QCSP(H) as H ranges over semicomplete digraphs. We
obtain a complexity-theoretic trichotomy: QCSP(H) is either in P, is NP-complete or is Pspace-complete. The largest part of our work is the algebraic classification of precisely which semicompletes enjoy only essentially unary polymorphisms, which is combinatorially interesting in its own right.

Item Type: Conference or Workshop Item (Paper)
Additional Information: Online ISBN: 9783662439487
Published paper appears in: Automata, Languages, and Programming, Volume 8572 of the series Lecture Notes in Computer Science pp 847-858, 2014
Research Areas: A. > School of Science and Technology > Computer Science > Foundations of Computing group
Item ID: 16766
Notes on copyright: The final publication is available at Springer via http://dx.doi.org/10.1007/978-3-662-43948-7_70
Useful Links:
Depositing User: Barnaby Martin
Date Deposited: 03 Jun 2015 11:10
Last Modified: 01 Jun 2019 20:54
URI: https://eprints.mdx.ac.uk/id/eprint/16766

Actions (login required)

Edit Item Edit Item

Full text downloads (NB count will be zero if no full text documents are attached to the record)

Downloads per month over the past year