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» Autoreducibility of NP-Complete Sets
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MFCS
2005
Springer
14 years 4 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 5 months 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 9 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»
14 years 2 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 9 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...