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CIE
2007
Springer
15 years 3 months ago
Post's Problem for Ordinal Register Machines
We study Post’s Problem for the ordinal register machines defined in [6], showing that its general solution is positive, but that any set of ordinals solving it must be unbounde...
Joel David Hamkins, Russell G. Miller
CIE
2006
Springer
15 years 1 months ago
Constraints on Hypercomputation
Wegner and Eberbach[Weg04b] have argued that there are fundamental limitations to Turing Machines as a foundation of computability and that these can be overcome by so-called super...
Greg Michaelson, W. Paul Cockshott
CDES
2006
84views Hardware» more  CDES 2006»
14 years 11 months ago
Simulation of a Turing Machine using EndoII Splicing Rules
In this paper we define splicing rules for class II restriction endonucleases and show how a Turing Machine can be simulated using such rules.
Kamala Kritihivasan, Anshu Bhatia, T. S. Chandra
ICALP
2005
Springer
15 years 3 months ago
Noisy Turing Machines
Abstract. Turing machines exposed to a small stochastic noise are considered. An exact characterisation of their (≈ Π0 2 ) computational power (as noise level tends to 0) is obt...
Eugene Asarin, Pieter Collins
77
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FCT
2005
Springer
15 years 3 months ago
On the Power of Unambiguity in Alternating Machines
Unambiguity in alternating Turing machines has received considerable attention in the context of analyzing globally-unique games by Aida et al. [ACRW04] and in the design of effic...
Holger Spakowski, Rahul Tripathi