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MSCS
2010
104views more  MSCS 2010»
14 years 7 months ago
A note on accelerated Turing machines
ABSTRACT. In this note we prove that any Turing machine which uses only a finite computational space for every input cannot solve an uncomputable problem even in case it runs in a...
Cristian S. Calude, Ludwig Staiger
MSCS
2006
89views more  MSCS 2006»
14 years 9 months ago
Quantum weakest preconditions
We develop a notion of predicate transformer and, in particular, the weakest precondition, appropriate for quantum computation. We show that there is a Stone-type duality between ...
Ellie D'Hondt, Prakash Panangaden
MSCS
2006
100views more  MSCS 2006»
14 years 9 months ago
Modified bar recursion
Modified bar recursion has been used to give a realizability interpretation of the classical axioms of countable and dependent choice. In this paper we survey the main results con...
Ulrich Berger, Paulo Oliva
MSCS
1998
58views more  MSCS 1998»
14 years 9 months ago
Minimal Realization in Bicategories of Automata
The context of this article is the program to develop monoidal bicategories with a feedback operation as an algebra of processes, with applications to concurrency theory. The obje...
Robert D. Rosebrugh, Nicoletta Sabadini, Robert F....
MSCS
2010
103views more  MSCS 2010»
14 years 7 months ago
Iterative reflections of monads
Iterative monads, introduced by Calvin Elgot in the 1970’s, are those ideal monads in which every guarded system of recursive equations has a unique solution. For every ideal mon...
Jirí Adámek, Stefan Milius, Jiri Vel...