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STACS
2007
Springer
13 years 10 months ago
Correlations of Partial Words
Francine Blanchet-Sadri, Joshua D. Gafni, Kevin H....
STACS
2007
Springer
13 years 10 months ago
Kolmogorov-Loveland Stochasticity and Kolmogorov Complexity
Abstract. Merkle et al. [13] showed that all Kolmogorov-Loveland stochas
Laurent Bienvenu
STACS
2007
Springer
13 years 10 months ago
On the Complexity of Unary Tiling-Recognizable Picture Languages
Abstract. We give a characterization, in terms of computational complexity, of the family Rec1 of the unary picture languages that are tiling recognizable. We introduce quasi-unary...
Alberto Bertoni, Massimiliano Goldwurm, Violetta L...
STACS
2007
Springer
13 years 10 months ago
On Completing Latin Squares
We present a (2 3 − o(1))-approximation algorithm for the partial latin square extension (PLSE) problem. This improves the current best bound of 1 − 1 e due to Gomes, Regis, an...
Iman Hajirasouliha, Hossein Jowhari, Ravi Kumar, R...
STACS
2007
Springer
13 years 10 months ago
On Fixed Point Equations over Commutative Semirings
Fixed point equations x = f(x) over ω-continuous semirings can be seen as the mathematical foundation of interprocedural program analysis. The sequence 0, f(0), f2 (0), . . . conv...
Javier Esparza, Stefan Kiefer, Michael Luttenberge...
STACS
2007
Springer
13 years 10 months ago
A First Investigation of Sturmian Trees
We consider Sturmian trees as a natural generalization of Sturmian words. A Sturmian tree is a tree having n+1 distinct subtrees of height n for each n. As for the case of words, S...
Jean Berstel, Luc Boasson, Olivier Carton, Isabell...
STACS
2007
Springer
13 years 10 months ago
The Polynomially Bounded Perfect Matching Problem Is in NC 2
Abstract. The perfect matching problem is known to be in ¶, in randomized NC, and it is hard for NL. Whether the perfect matching problem is in NC is one of the most prominent ope...
Manindra Agrawal, Thanh Minh Hoang, Thomas Thierau...
STACS
2007
Springer
13 years 10 months ago
Symmetries and the Complexity of Pure Nash Equilibrium
Strategic games may exhibit symmetries in a variety of ways. A characteristic feature, enabling the compact representation of games even when the number of players is unbounded, i...
Felix Brandt, Felix A. Fischer, Markus Holzer