Searching for "The Arithmetical Hierarchy of Real Numbers." – sorted by Relevance.

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2 documents found, showing 1 through 2.

The Topological Entropy of Iterated Piecewise Affine Maps is Uncomputable
by Pascal Koiran — Discrete Mathematics and Theoretical Computer Science
… in the arithmetical hierarchy of real numbers studied in [10]. Conversely, one can ask whether every computable real…
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The Topological Entropy of Iterated Piecewise Affine Maps is Uncomputable
by Superieure Lyon, Unite Mixte, Recherche Cnrs-inria-ens Lyon, Ecole Normale, Ecole Normale, Sup Lyon, Pascal Koiran, Pascal Koiran — 2000
… from the denition of topological entropy that this number is always in the arithmetical hierarchy…
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