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We study the power of RAM acceptors with several instruction sets. We exhibit several instances where the availability of the division operator increases the power of the acceptors. We also show that in certain situations parallelism and stochastic features ('distributed random choices') are provably more powerful than either parallelism or randomness alone. We relate the class of probabilistic Turing...
Two decidable logical theories are presented, one complete for deterministic polynomial time, one complete for polynomial space. Both have natural proof systems. A lower space bound of n/log(n) is shown for the proof system for the PTIME complete theory and a lower length bound of 2cn/log(n) is shown for the proof system for the PSPACE complete theory.
At the heart of a number of arithmetic complexity problems are some basic questions in tensor analysis. Questions regarding the complexity of multiplication operations which are n-linear are most easily studied in a tensor analytic framework. Certain results of tensor analysis are used in this paper to provide insight into the solution of some of these problems. Methods are given to determine a partial...
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