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On the length of functions of κ-valued logic in the class of polynomial normal forms modulo κ

  • Maksim A. Bashov EMAIL logo and Svetlana N. Selezneva
Published/Copyright: June 10, 2015

Abstract

Polynomial normal forms for functions of κ-valued logics (for prime values of κ) are considered. A polynomial normal form modulo κ (p.n.f.) is the sum modulo κ of products of variables, or variables with one or several Post negations, taken with some coefficients. The length of a p.n.f. is the number of distinct terms that appear in the form with nonzero coefficients. If κ is a prime number, then each function of κ-valued logic may be represented by various p.n.f. The length of a function of κ-valued logic in the class of p.n.f. is the minimum length of a p.n.f. representing this function. The Shannon function Lp.n.f.κ (n) of the length of functions of κ-valued logic in the class of p.n.f. is the maximum length of a function in the class of p.n.f. among all n-ary functions of κ-valued logic. In thiswork the order of growth of the Shannon function Lp.n.fκ (n) is established (for prime values of κ):

Received: 2013-9-11
Published Online: 2015-6-10
Published in Print: 2015-6-1

© 2015 by Walter de Gruyter Berlin/Boston

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