On the complexity of functions for random access machines

Author:

Bshouty Nader H.1

Affiliation:

1. Univ. of Calgary, Calgary, Alberta, Canada

Abstract

Tight bounds are proved for Sort, Merge, Insert, Gcd of integers, Gcd of polynomials, and Rational functions over a finite inputs domain, in a random access machine with arithmetic operations, direct and indirect addressing, unlimited power for answering YES/NO questions, branching, and tables with bounded size. These bounds are also true even if additions, subtractions, multiplications, and divisions of elements by elements of the field are not counted. In a random access machine with finitely many constants and a bounded number of types of instructions, it is proved that the complexity of a function over a countable infinite domain is equal to the complexity of the function in a sufficiently large finite subdomain.

Publisher

Association for Computing Machinery (ACM)

Subject

Artificial Intelligence,Hardware and Architecture,Information Systems,Control and Systems Engineering,Software

Reference14 articles.

1. ~BSHOUTY N.H. Euclid's GCD algorithm is not optimal. I. Upper bounds. In preparation. ~BSHOUTY N.H. Euclid's GCD algorithm is not optimal. I. Upper bounds. In preparation.

2. ~BSHOUTY N.H. Euclid's GCD algorithm is not optimal II. Lower bounds. In preparation. ~BSHOUTY N.H. Euclid's GCD algorithm is not optimal II. Lower bounds. In preparation.

3. ~FRIEDMAN N. Some results on the effect of arithmetics on comparison problems. In ~Proceedings of the 13th IEEE Symposium on Switching and Automata Theory. IEEE New York ~1972 pp. 139-143. ~FRIEDMAN N. Some results on the effect of arithmetics on comparison problems. In ~Proceedings of the 13th IEEE Symposium on Switching and Automata Theory. IEEE New York ~1972 pp. 139-143.

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