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» Hypercomputation: computing more than the Turing machine
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CORR
1999
Springer
93views Education» more  CORR 1999»
14 years 9 months ago
On the Power of Positive Turing Reductions
: In the early 1980s, Selman's seminal work on positive Turing reductions showed that positive Turing reduction to NP yields no greater computational power than NP itself. Thu...
Edith Hemaspaandra
74
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IJBC
2007
80views more  IJBC 2007»
14 years 9 months ago
Exact Approximations of omega Numbers
A Chaitin Omega number is the halting probability of a universal prefix-free Turing machine. Every Omega number is simultaneously computably enumerable (the limit of a computable...
Cristian S. Calude, Michael J. Dinneen
CJ
2006
100views more  CJ 2006»
14 years 9 months ago
Fuzzifying P Systems
Abstract. Uncertainty is an inherent property of all living systems. Curiously enough, computational models inspired by biological systems do not take, in general, under considerat...
Apostolos Syropoulos
IGPL
2006
107views more  IGPL 2006»
14 years 9 months ago
Undecidability over Continuous Time
Since 1996, some models of recursive functions over the real numbers have been analyzed by several researchers. It could be expected that they exhibit a computational power much g...
Jerzy Mycka, José Félix Costa
80
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SIGCSE
2006
ACM
128views Education» more  SIGCSE 2006»
15 years 3 months ago
Turning automata theory into a hands-on course
We present a hands-on approach to problem solving in the formal languages and automata theory course. Using the tool JFLAP, students can solve a wide range of problems that are te...
Susan H. Rodger, Bart Bressler, Thomas Finley, Ste...