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» Incompleteness in a General Setting
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DM
2008
95views more  DM 2008»
15 years 3 months ago
General neighbour-distinguishing index of a graph
It is proved that edges of a graph G with no component K2 can be coloured using at most 2 log2 (G) + 1 colours so that any two adjacent vertices have distinct sets of colours of t...
Ervin Györi, Mirko Hornák, Cory Palmer...
EOR
2010
82views more  EOR 2010»
15 years 3 months ago
Satisfactory graph partition, variants, and generalizations
The Satisfactory Partition problem asks for deciding if a given graph has a partition of its vertex set into two nonempty parts such that each vertex has at least as many neighbor...
Cristina Bazgan, Zsolt Tuza, Daniel Vanderpooten
ICLP
2005
Springer
15 years 8 months ago
Towards Implementations for Advanced Equivalence Checking in Answer-Set Programming
Abstract. In recent work, a general framework for specifying program correspondences under the answer-set semantics has been defined. The framework allows to define different not...
Hans Tompits, Stefan Woltran
SIAMCOMP
1998
137views more  SIAMCOMP 1998»
15 years 2 months ago
Primal-Dual RNC Approximation Algorithms for Set Cover and Covering Integer Programs
We build on the classical greedy sequential set cover algorithm, in the spirit of the primal-dual schema, to obtain simple parallel approximation algorithms for the set cover probl...
Sridhar Rajagopalan, Vijay V. Vazirani
CIE
2005
Springer
15 years 8 months ago
Computing a Model of Set Theory
We define the notion of ordinal computability by generalizing standard Turing computability on tapes of length ω to computations on tapes of arbitrary ordinal length. The general...
Peter Koepke