Titlebook: Automata, Languages and Programming; 33rd International C Michele Bugliesi,Bart Preneel,Ingo Wegener Conference proceedings 2006 Springer-V

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https://doi.org/10.1007/978-90-368-2539-9h noise thresholds are frequently estimated for the Steane seven-qubit, distance-three quantum code, there has been no proof that a constant threshold even exists for distance-three codes. We prove the existence of a constant threshold. The proven threshold is well below estimates, based on simulati

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幼稚

Emanuel Rogenhofer,Viktor Mouckated set of quantum devices..To achieve our goal we define the notions of simulation and equivalence. Using these two concepts, we construct sets of simulation conditions which imply that the physical device of interest is equivalent to the one it is supposed to implement. Another benefit of our form

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Getreide, Mais und Futtergr?serstraint graph ., so that if every assignment in . leaves an .-fraction of the edges unsatisfied, then in .. every assignment leaves an Ω(.)-fraction of the edges unsatisfied, that is, it amplifies the gap by a factor Ω(.). The corresponding result in [4] showed that one could amplify the gap by a fa

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consolidate

https://doi.org/10.1007/978-3-642-70917-3use this characterization to obtain a short elementary proof for the uniform decidability of the finite power property for rational languages in all monoids defined by a confluent regular system of deletion rules. This result in particular covers the case of free groups solved earlier by d’Alessandr

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Krankheiten und Besch?digungen an Maisates deterministic Turing machines in polynomial time. As a corollary we find that the small universal Turing machines of Mathew Cook run in polynomial time, this is an exponential improvement on their previously known simulation time overhead.

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Handbuch der Lebensmittelchemief pebbles, the two models have the same expressive power both in the deterministic case and in the nondeterministic case. Furthermore, nondeterministic (resp.?deterministic) tree-walking automata with . + 1 pebbles can recognize more languages than those with . pebbles. Moreover, there is a regular

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