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» Autoreducibility of NP-Complete Sets
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MFCS
2005
Springer
13 years 11 months ago
Autoreducibility, Mitoticity, and Immunity
We show the following results regarding complete sets. • NP-complete sets and PSPACE-complete sets are many-one autoreducible. • Complete sets of any level of PH, MODPH, or th...
Christian Glaßer, Mitsunori Ogihara, Aduri P...
FSTTCS
2007
Springer
14 years 12 days ago
Non-mitotic Sets
We study the question of the existence of non-mitotic sets in NP. We show under various hypotheses that • 1-tt-mitoticity and m-mitoticity differ on NP. • 1-tt-reducibility a...
Christian Glaßer, Alan L. Selman, Stephen D....
RECOMB
2010
Springer
13 years 4 months ago
Consistency of Sequence-Based Gene Clusters
In comparative genomics, various combinatorial models can be used to specify gene clusters — groups of genes that are co-located in a set of genomes. Several approaches have been...
Roland Wittler, Jens Stoye
COCO
1989
Springer
97views Algorithms» more  COCO 1989»
13 years 10 months ago
On the Structure of Bounded Queries to Arbitrary NP Sets
Kadin [6] showed that if the Polynomial Hierarchy (PH) has infinitely many levels, then for all k, PSAT[k] ⊂ PSAT[k+1]. This paper extends Kadin’s technique and shows that a p...
Richard Chang
ADHOCNOW
2010
Springer
13 years 4 months ago
On Minimizing the Sum of Sensor Movements for Barrier Coverage of a Line Segment
A set of sensors establishes barrier coverage of a given line segment if every point of the segment is within the sensing range of a sensor. Given a line segment I, n mobile sensor...
Jurek Czyzowicz, Evangelos Kranakis, Danny Krizanc...